init
This commit is contained in:
921
第5章习题.f90
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921
第5章习题.f90
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! 2021:04:12 17:39:07 5-1
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! program example
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! implicit none
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! real :: numSquareRoot
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! integer :: i, numSquare, numCube
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! ! write(*, '(1X, "Table of Square Roots, Squares, and Cubes"')
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! write(*, 1)
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! 1 FORMAT(1X, "Table of Square Roots, Squares, and Cubes"/&
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! &1X, " Number Square Root Square Cube"/&
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! &1X, " ====== =========== ====== ===="/&
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! &1X)
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! ! write(*, '(1X, " Number Square Root Square Cube")')
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! ! write(*, '(1X, " ====== =========== ====== ===="')
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! DO i=1,10,1
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! numSquareRoot = sqrt(real(i))
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! numSquare = i**2
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! numCube = i**3
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! write(*, 2) i, numSquareRoot, numSquare, numCube
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! 2 FORMAT(1X, T5, I2, T13, F8.6, T27, I3, T36, I4)
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! END DO
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! end program example
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! 2021:04:13 01:41:33 5-3.1
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! program example
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! implicit none
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! integer :: inforError
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! OPEN (UNIT=25, FILE='IN052691', STATUS='OLD', ACTION='READ', IOSTAT=inforError)
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! if ( inforError == 0 ) then
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! write(*,'(1X, "成功打开文件")')
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! else
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! write(*,'(1X, "打开文件失败，错误代码为", I3)') inforError
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! end if
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! close (unit= 25)
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! end program example
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! 2021:04:13 01:57:01 5-3.2
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! program example
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! implicit none
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! integer :: inforError
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! character(len=8) :: out_name
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! out_name='12345678'
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! open (unit=1, STATUS='new', ACTION='readwrite', file=out_name, IOSTAT=inforError)
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! if ( inforError /= 0 ) then
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! write(*, '(1X, "新建文件失败")')
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! else
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! write(*, '(1X, "新建文件成功")')
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! endif
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! close (unit=1)
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! end program example
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! 2021:04:13 02:19:06 5-3.4
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! program name
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! implicit none
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! character(len=20) :: first, last, varName, varValue
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! integer :: i=0, errorLevel=0, length=0
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! open(unit=1, file='content', status='old', action='read', iostat=errorLevel)
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! if ( errorLevel > 0 ) stop "出现了错误"
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! do
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! read(1,*, iostat=errorLevel) varName, varValue
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! if ( errorLevel < 0 ) EXIT
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! length=length+1
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! if ( varName == 'first' ) first=varValue
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! if ( varName == 'last' ) last=varValue
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! end do
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! rewind (unit=1)
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! read(1,'(T1, A)') varValue
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! write(*,*) first, last, varValue
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! close (unit=1)
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! end program name
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! 2021:04:13 10:13:10 5.6.3 5-3.a
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! program name
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! implicit none
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! integer :: i
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! character(len=20) :: fmt
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! fmt="('1','i= ', I6.5)"
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! i=-123
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! write(*,fmt) i
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! end program name
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! 2021:04:13 10:25:00 5.6.3 5-3.c
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! program name
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! implicit none
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! integer :: i1, i2
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! i1=10
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! i2=4**2
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! write(*, 300) i1 > i2
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! 300 format (' ','Result = ', L6)
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! end program name
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! 2021:04:13 16:56:13 5.6.3 5-7
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! program name
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! implicit none
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! integer :: i=0, j=0, writeLocate
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! real :: value0, value1, value2, value3, value4, value5, value6, value7, value8, value9
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! write(*, '(T13, "表格：1~10之间（以0.1为一级）各个数的以10为底的对数")')
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! write(*,1)
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! 1 format (T9, 'X.0', T16, 'X.1', T23, 'X.2', T30, 'X.3', T37, 'X.4', T44, 'X.5', T51, 'X.6',&
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! & T58, 'X.7', T65, 'X.8', T72, 'X.9')
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! do i = 1, 10, 1
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! value0=log10(real(i)+0)
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! value1=log10(real(i)+0.1)
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! value2=log10(real(i)+0.2)
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! value3=log10(real(i)+0.3)
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! value4=log10(real(i)+0.4)
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! value5=log10(real(i)+0.5)
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! value6=log10(real(i)+0.6)
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! value7=log10(real(i)+0.7)
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! value8=log10(real(i)+0.8)
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! value9=log10(real(i)+0.9)
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! write(*,2) real(i), value0, value1, value2, value3, value4, value5, value6, value7, value8, value9
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! 2 format (T2, F4.1, T8, F5.3, T15, F5.3, T22, F5.3, T29, F5.3, T36, F5.3, T43, F5.3, T50, F5.3,&
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! & T57, F5.3, T64, F5.3, T71, F5.3)
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! end do
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! end program name
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! 2021:04:13 17:40:36 5.6.3 5-8
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! program name
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!
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! implicit none
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! integer :: i=0, errorLevel, j=0
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! real :: average=0, sum=0, standardDeviation=0, value=0
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! open (unit=1, file='content', status='old', action='read', iostat=errorLevel)
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! if ( errorLevel /= 0 ) stop "Open file fatal!"
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! do
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! read(1,*,iostat=errorLevel) value
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! if ( errorLevel < 0 ) exit
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! sum=sum+value
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! i=i+1
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! end do
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! average=sum/i
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! rewind (unit=1)
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! do j=1,i,1
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! read(1,*,iostat=errorLevel) value
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! if ( errorLevel /= 0 ) exit
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! standardDeviation=(value-average)**2+standardDeviation
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! end do
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! standardDeviation=sqrt(standardDeviation/i)
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! write(*,2) i, sum, average, standardDeviation
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! 2 format (1X, '共统计', I3, '个数值，样本总和为', F8.1, '，平均值为', F8.1, '，标准偏差为', F8.1)
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! close (unit=1)
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!
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! end program name
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! 2021:04:13 20:11:58 5.6.3 5-13
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! program name
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!
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! implicit none
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! integer :: timeSecond, errorLevel, HH, MM, SS
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! write(*,'(1X, "Please enter the start time in second(0~86400)")')
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! do
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! read(*,*, iostat=errorLevel) timeSecond
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! if ( errorLevel /= 0 ) then
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! write(*,'(1X, "输入数值格式不正确，请输入在0~86400之间的整数")')
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! else
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! if ( timeSecond > 86400 .or. timeSecond < 0 ) then
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! write(*,'(1X, "请在正确的范围内输入数值(0~86400)")')
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! else
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! exit
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! end if
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! end if
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! end do
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! SS=timeSecond-timeSecond/60*60
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! MM=(timeSecond-timeSecond/(60*60)*3600)/60
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! HH=timeSecond/(60*60)
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! write(*,1) HH, MM, SS
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! 1 format (1X, "当前的时间为：", I2.2, ":", I2.2, ":", I2.2, ' (24h)')
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!
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! end program name
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! 2021:04:13 20:31:14 5.6.3 5-14
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! program name
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! implicit none
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! integer :: h
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! real :: G, M, R, gg=0
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! G=6.672E-11
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! M=5.98E24
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! R=6371E3
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! write(*,'(1X, "表格：高度相对于重力加速度一览表"/&
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! &1X, "高度(km)", T17, "重力加速度（米/秒2）"/&
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! &1x, "=========", T15, "==================")')
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! do h=0,40000,500
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! gg=-G*M/(R+real(h)*1000)**2
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! write(*,1) h, gg
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! 1 format (T3, I5, T18, F8.2)
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! end do
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! end program name
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! 2021-04-13 21:48:55 5.6.3 5-21
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! program name
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! implicit none
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! integer :: unit=8, errorLevel
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! open (UNIT=unit, status="scratch", iostat=errorLevel)
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! write(*,*) errorLevel
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! end program name
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! 2021-04-13 21:58:06 5.6.3 5-26
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! program name
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! implicit none
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! integer :: i, errorLevel
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! real :: max, min, value
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! character(len=20) :: maxRow, minRow, str
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! open (unit=1, file='content', status='old', action='read', iostat=errorLevel)
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! if ( errorLevel /= 0 ) stop "Open file fatal!"
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! i=0
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! do
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! read(1, *, iostat=errorLevel) value
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! if (errorLevel /= 0) exit
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! i=i+1
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! if (i == 1) then
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! max=value
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! min=value
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! write(maxRow,6) i
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! write(minRow,6) i
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! 6 format (I2)
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! else
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! if (value > max) then
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! max=value
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! write(maxRow,6) i
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! else if (value < min) then
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! min=value
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! write(minRow,6) i
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! else if (abs(value-max) < 1 ) then
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! write(str,4) i, maxRow
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! maxRow=str
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! else if (abs(value-min) < 1) then
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! write(str,4) i, minRow
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! minRow=str
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! end if
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! 4 format (I2, ',', A10)
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! end if
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! write(*,3) i, maxRow, max, minRow, min
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! 3 format (1X, "第", I2, "次读取，文件在第", A14, "行取到最大值为："&
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! &, F8.1, "，在第", A14, "行取到最小值为：", F8.1)
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! end do
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! write(*,2) maxRow, max, minRow, min
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! 2 format (1X, "文件在第", A20, "行取到最大值为：", F8.1, "，在第", A20, "行取到最小值为：", F8.1)
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! end program name
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! 2021:04:14 16:33:55 5.6.3 5-27
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! program name
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! implicit none
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! ! 以只读形式打开旧文件
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! ! j=1
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! ! DO
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! ! 读取第j行字符并赋值给字符变量1（长度小于133）
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! ! IF 错误等级<0 退出循环
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! ! IF 错误等级>0 停止并报错
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! ! DO i从1到字符变量1长度（除去空格）
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! ! 抽取字符变量1第i个字符并赋值给一个长度为1的字符变量2
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! ! IF 字符变量2不是逗号或者没有到达字符串末尾
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! ! 跳过
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! ! ELSE
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! ! IF 到达了字符串末尾
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! ! 结尾位数=i
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! ! ELSE
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! ! 结尾位数=i-1
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! ! END IF
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! ! sum=sum+实数1
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! ! 计数1=计数1+1
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! ! 字符变量3=空
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! ! END IF
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! ! END DO
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! ! j=j+1
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! ! END DO
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! ! 平均值=sum/计数1
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! integer :: i, j, k, errorLevel, valueStart, valueEnd
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! real :: sum, value, average
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! character(len=128) :: allValue, selectValue, readValue
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! open (unit=1, file='content', status='old', action='read', iostat=errorLevel)
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! if (errorLevel > 0) stop "读取文件出错"
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! j=1
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! k=0
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! valueStart=1
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! do
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! read(1, '(A128)', iostat=errorLevel) allValue
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! ! write(*,*) allValue
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! if (errorLevel < 0) exit
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! if (errorLevel > 0) stop "读取第j行出错"
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! ! write(*,*) "读取第", j, "行"
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! do i=1, len_trim(allValue), 1
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! selectValue=allValue(i:i)
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! ! write(*,*) "读取第", j, "行", "第", i, "列"
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! if ( .not. ( trim(selectValue) == ',' .or. i == len_trim(allValue)) ) then
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! ! ! readValue=trim(readValue) // trim(selectValue)
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! ! ! write(*,*) '1', readValue
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! ! else if ( trim(selectValue) == ' ') then
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! ! ! write(*,*) '2', readValue
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! cycle
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! else
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! if ( i == len_trim(allValue) ) then
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! valueEnd=i
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! else
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! valueEnd=i-1
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! end if
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! readValue=allValue(valueStart:valueEnd)
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! read(readValue, '(F5.1)', iostat=errorLevel) value
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! if (errorLevel > 0) stop "第j行第i列附件的字符非合法数值，请检查"
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! sum=sum+value
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! k=k+1
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! ! write(*,*) '3', readValue
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! readValue=''
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! valueStart=i+1
|
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! end if
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! end do
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! j=j+1
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! end do
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! average=sum/k
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! write(*,2) k, sum, average
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! 2 format (1X, "共计算", I3, "个数值，总和为", F5.1, "，平均值大小为", F5.1)
|
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! close (unit=1)
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|
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! end program name
|
||||
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! 2021:04:14 17:31:01 一个用于读取文件中所有数值的程序案例
|
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! program name
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! ! =============================================================
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||||
! ! 目的:
|
||||
! ! 遍历一个文件内的所有变量(需要全部是实数或整数)
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021-04-14 17:46:57 Sola 编写源代码并校正格式
|
||||
! ! =============================================================
|
||||
! implicit none
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||||
! ! 数据字典
|
||||
! ! 结构需要
|
||||
! integer :: i ! 控制读取字符所在位置
|
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! integer :: errorLevel ! 检查错误信息
|
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! integer :: valueStart ! 读取数值开始位置
|
||||
! integer :: valueEnd ! 读取数值结束位置
|
||||
! real :: value ! 读取的数值内容
|
||||
! character(len=128) :: allValue ! 所在行字符内容
|
||||
! character(len=128) :: selectValue ! 读取所在行第i个字符内容
|
||||
! character(len=128) :: readValue ! 读取的字符内容
|
||||
! ! 使用者自定义
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! ! 声明变量
|
||||
! ! 变量初始化
|
||||
! valueStart=1
|
||||
! ! 打开文件
|
||||
! open (unit=1, file='content', status='old', action='read', iostat=errorLevel)
|
||||
! if (errorLevel > 0) stop "读取文件出错"
|
||||
! ! 遍历数值
|
||||
! do
|
||||
! read(1, '(A128)', iostat=errorLevel) allValue ! 读取行内容
|
||||
! if (errorLevel < 0) exit ! 如果到达最后一行, 退出循环
|
||||
! if (errorLevel > 0) stop "读取行出错" ! 读取行内容出错, 退出程序
|
||||
! ! 遍历行内字符
|
||||
! do i=1, len_trim(allValue), 1
|
||||
! selectValue=allValue(i:i) ! 读取第i个字符
|
||||
! if ( .not. ( trim(selectValue) == ',' .or. i == len_trim(allValue)) ) then
|
||||
! cycle ! 如果不是逗号或到达末尾, 则跳过此次循环
|
||||
! else ! 如果是逗号或到达末尾
|
||||
! if ( i == len_trim(allValue) ) then
|
||||
! valueEnd=i ! 如果是到达末尾, 则数值结束位置为i
|
||||
! else
|
||||
! valueEnd=i-1 ! 如果并未达到末尾, 则数值结束位置为i-1
|
||||
! end if
|
||||
! readValue=allValue(valueStart:valueEnd) ! 读取当前数值
|
||||
! read(readValue, '(F5.1)', iostat=errorLevel) value ! 将当前数值赋值给一个实数
|
||||
! if (errorLevel > 0) stop "存在非合法数值，请检查" ! 赋值存在错误, 退出程序
|
||||
! valueStart=i+1 ! 下一次数值的开始位置为i+1
|
||||
! end if
|
||||
! end do
|
||||
! valueStart=1 ! 开始新一行, 并将数值开始位置重置
|
||||
! end do
|
||||
! close (unit=1) ! 关闭文件
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021:04:14 17:56:25 5.6.3 5-28
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的:
|
||||
! ! 遍历一个文件内的所有变量(需要全部是实数或整数)
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021-04-14 17:46:57 Sola 编写源代码并校正格式
|
||||
! ! 2021:04:14 17:57:21 Sola 将弧度转化为角度
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 结构需要
|
||||
! integer :: i ! 控制读取字符所在位置
|
||||
! integer :: errorLevel ! 检查错误信息
|
||||
! integer :: valueStart ! 读取数值开始位置
|
||||
! integer :: valueEnd ! 读取数值结束位置
|
||||
! real :: value ! 读取的数值内容
|
||||
! character(len=128) :: allValue ! 所在行字符内容
|
||||
! character(len=128) :: selectValue ! 读取所在行第i个字符内容
|
||||
! character(len=128) :: readValue ! 读取的字符内容
|
||||
! ! 使用者自定义
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! ! 声明变量
|
||||
! real :: angle ! 角度
|
||||
! real :: radian ! 弧度
|
||||
! integer :: angleDegree ! 度
|
||||
! integer :: angleMinute ! 分
|
||||
! integer :: angleSecond ! 秒
|
||||
! ! 变量初始化
|
||||
! valueStart=1
|
||||
! ! 打开文件
|
||||
! open (unit=1, file='content', status='old', action='read', iostat=errorLevel)
|
||||
! if (errorLevel > 0) stop "读取文件出错"
|
||||
! ! 遍历数值
|
||||
! do
|
||||
! read(1, '(A128)', iostat=errorLevel) allValue ! 读取行内容
|
||||
! if (errorLevel < 0) exit ! 如果到达最后一行, 退出循环
|
||||
! if (errorLevel > 0) stop "读取行出错" ! 读取行内容出错, 退出程序
|
||||
! ! 遍历行内字符
|
||||
! do i=1, len_trim(allValue), 1
|
||||
! selectValue=allValue(i:i) ! 读取第i个字符
|
||||
! if ( .not. ( trim(selectValue) == ',' .or. i == len_trim(allValue)) ) then
|
||||
! cycle ! 如果不是逗号或到达末尾, 则跳过此次循环
|
||||
! else ! 如果是逗号或到达末尾
|
||||
! if ( i == len_trim(allValue) ) then
|
||||
! valueEnd=i ! 如果是到达末尾, 则数值结束位置为i
|
||||
! else
|
||||
! valueEnd=i-1 ! 如果并未达到末尾, 则数值结束位置为i-1
|
||||
! end if
|
||||
! readValue=allValue(valueStart:valueEnd) ! 读取当前数值
|
||||
! read(readValue, '(F10.6)', iostat=errorLevel) radian ! 将当前数值赋值给一个实数
|
||||
! if (errorLevel > 0) stop "存在非合法数值，请检查" ! 赋值存在错误, 退出程序
|
||||
! angle=radian/PI*360
|
||||
! angleDegree=int(angle)
|
||||
! angleMinute=int((angle-real(angleDegree))*60)
|
||||
! angleSecond=nint((angle-real(angleDegree)-real(angleMinute)/60)*60*60)
|
||||
! write(*,2) radian, angleDegree, angleMinute, angleSecond
|
||||
! 2 format (1X, F10.6, " 转换为角度为", I4, "度 ", I2, "分 ", I2, "秒")
|
||||
! valueStart=i+1 ! 下一次数值的开始位置为i+1
|
||||
! end if
|
||||
! end do
|
||||
! valueStart=1 ! 开始新一行, 并将数值开始位置重置
|
||||
! end do
|
||||
! close (unit=1) ! 关闭文件
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021:04:14 20:02:17 标准程序格式
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的:
|
||||
! !
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! ! 声明变量
|
||||
! ! 变量初始化
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021:04:14 20:02:17 5.6.3 5-31
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的:
|
||||
! ! 天线放大率程式
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021:04:14 20:05:37 Sola 编写源代码
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! ! 声明变量
|
||||
! real :: G ! 天线放大率
|
||||
! integer :: angle ! 角度
|
||||
! real :: radian ! 弧度
|
||||
! ! 变量初始化
|
||||
! g=0
|
||||
! radian=0
|
||||
! angle=0
|
||||
! write(*,1)
|
||||
! 1 format (1X, "Form. 天线放大率与角度"/&
|
||||
! &1X, T4, "radian", T15, "天线放大率"/&
|
||||
! &1X, T2, "==========", T15, "==========")
|
||||
! do angle=0,90,1
|
||||
! radian=angle/360.*PI
|
||||
! if ( (radian-0) < 0.01 ) then
|
||||
! g=abs(1)
|
||||
! else
|
||||
! g=abs(sin(6*radian)/(6*radian))
|
||||
! end if
|
||||
! write(*,2) radian, G
|
||||
! 2 format (1X, T3, F8.6, T16, F8.6)
|
||||
! end do
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021:04:14 22:45:42 5.6.3 5-32
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的: 计算发动机输出功率
|
||||
! !
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021:04:14 22:46:13 Sola 编写源代码
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! ! 声明变量
|
||||
! real :: p ! 功率 瓦特
|
||||
! real :: t_ind ! 转矩
|
||||
! real :: w_m ! 角速度 rad/s
|
||||
! integer :: t ! 时间 1/4s
|
||||
! ! 变量初始化
|
||||
! write(*,1)
|
||||
! 1 format (1X, "Form. 发动机随时间变化输出功率变化情况"/&
|
||||
! &1X, T4, "Time(s)", T20, "P(w)"/&
|
||||
! &1X, T1, "===========", T15, "===============")
|
||||
! do t=0,40,1
|
||||
! t_ind=10*e**(-0.25*0.25*t)
|
||||
! w_m=377*(1-e**(-0.25*0.25*t))
|
||||
! p=t_ind*w_m
|
||||
! write(*,2) t*0.25, p
|
||||
! 2 format (1X, T5, F5.2, T17, F10.5)
|
||||
! end do
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021:04:14 23:00:23 5.6.3 5-33 5-34
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的: 计算轨道
|
||||
! !
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021:04:14 23:00:53 Sola 编写源代码
|
||||
! ! 2021:04:14 23:50:44 Sola 增加新题目的功能
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! REAL, PARAMETER :: r_earth=6.371E3 ! 地球半径
|
||||
! ! 声明变量
|
||||
! real :: r ! 卫星距离地球中心的距离 km
|
||||
! real :: p ! 确定轨道大小的参数
|
||||
! real :: x ! 轨道离心率的参数
|
||||
! real :: distanceMax ! 轨道最远距离 km
|
||||
! real :: distanceMin ! 轨道最近距离 km
|
||||
! integer :: errorLevel ! 错误参数
|
||||
! integer :: i ! 循环用变量
|
||||
! ! 变量初始化
|
||||
! p=10000
|
||||
! write(*,1)
|
||||
! 1 format (1X, "Form. 卫星轨道信息一览表"/&
|
||||
! &1X, " ε min(km) max(km)"/&
|
||||
! &1X, "===== ========= =========")
|
||||
! ! open (unit=2, status='scratch', iostat=errorLevel)
|
||||
! ! write(2,'("0"/"0.25"/"0.5")')
|
||||
! ! rewind (unit=2)
|
||||
! ! do i = 1,3
|
||||
! ! read(2,*) x
|
||||
! ! distanceMax=p/(1-x)
|
||||
! ! distanceMin=p/(1+x)
|
||||
! ! write(*,2) x, distanceMin, distanceMax
|
||||
! ! 2 format (1X, T2, F5.3, T9, F7.1, T19, F7.1)
|
||||
! ! end do
|
||||
! do i=0,10,1
|
||||
! x=i*0.05
|
||||
! distanceMax=p/(1-x)-r_earth
|
||||
! distanceMin=p/(1+x)-r_earth
|
||||
! write(*,2) x, distanceMin, distanceMax
|
||||
! 2 format (1X, T2, F5.3, T9, F7.1, T19, F7.1)
|
||||
! end do
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021:04:15 00:39:05 5.6.3 5-35
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的: 动态修改格式描述符
|
||||
! !
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021:04:15 00:39:50 Sola 编写源代码
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! ! 声明变量
|
||||
! integer :: errorLevel ! 错误代码
|
||||
! real :: x1, x2, x3, x4 ! 用于保存读取到的变量
|
||||
! integer :: i ! 循环参数
|
||||
! character(len=8) :: varType ! 输出格式
|
||||
! ! 变量初始化
|
||||
! open (unit=1, status="scratch", iostat=errorLevel)
|
||||
! if (errorLevel /= 0) stop "Open file error!"
|
||||
! write(1,1)
|
||||
! 1 format("0.00012, -250., 6.02E23, -0.012"/&
|
||||
! &"0.0, 12345.6, 1.6E-19, -1000.")
|
||||
! rewind(unit=1)
|
||||
! do i=1,2
|
||||
! read(1,*) x1, x2, x3, x4
|
||||
! if ( x1 == 0 .or. ( 0.01 <= abs(x1) .and. 1000.0 >= abs(x1) ) ) then
|
||||
! varType='(F14.6)'
|
||||
! else
|
||||
! varType='(ES14.6)'
|
||||
! end if
|
||||
! write(*,trim(varType)) x1
|
||||
! if ( x2 == 0 .or. ( 0.01 <= abs(x2) .and. 1000.0 >= abs(x2) ) ) then
|
||||
! varType='(F14.6)'
|
||||
! else
|
||||
! varType='(ES14.6)'
|
||||
! end if
|
||||
! write(*,trim(varType)) x2
|
||||
! if ( x3 == 0 .or. ( 0.01 <= abs(x3) .and. 1000.0 >= abs(x3) ) ) then
|
||||
! varType='(F14.6)'
|
||||
! else
|
||||
! varType='(ES14.6)'
|
||||
! end if
|
||||
! write(*,trim(varType)) x3
|
||||
! if ( x4 == 0 .or. ( 0.01 <= abs(x4) .and. 1000.0 >= abs(x4) ) ) then
|
||||
! varType='(F14.6)'
|
||||
! else
|
||||
! varType='(ES14.6)'
|
||||
! end if
|
||||
! write(*,trim(varType)) x4
|
||||
! end do
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021-04-15 01:14:04 5.6.3 5-36
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的:
|
||||
! ! 最小二乘法回归，并计算相关系数，如果相关系数小于0.3，发出警告
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021-04-15 01:12:35 Sola 编写源代码
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! ! 声明变量
|
||||
! real :: x, y ! 坐标xy
|
||||
! integer :: errorLevel ! 错误代码
|
||||
! real :: m, b ! 拟合斜率和截距
|
||||
! real :: x_bar, y_bar ! xy均值
|
||||
! real :: r ! 相关系数
|
||||
! real :: x_sum, y_sum ! xy总和
|
||||
! real :: x2_sum, xy_sum, y2_sum ! 各种参数
|
||||
! integer :: i ! 循环变量
|
||||
! ! 变量初始化
|
||||
! x_sum=0
|
||||
! y_sum=0
|
||||
! x2_sum=0
|
||||
! y2_sum=0
|
||||
! xy_sum=0
|
||||
! i=0
|
||||
! ! 输入数据
|
||||
! open (unit=1, status='scratch', iostat=errorLevel)
|
||||
! if (errorLevel /= 0) stop "Error!"
|
||||
! write(1,1)
|
||||
! 1 format("1.1, 1.01"/&
|
||||
! &"2.2, 2.30"/&
|
||||
! &"3.3, 3.05"/&
|
||||
! &"4.4, 4.28"/&
|
||||
! &"5.5, 5.75"/&
|
||||
! &"6.6, 6.48"/&
|
||||
! &"7.7, 7.84")
|
||||
! rewind(unit=1)
|
||||
! ! 计算参数
|
||||
! do
|
||||
! read(1,'(F10.4,F10.4)', iostat=errorLevel) x, y
|
||||
! if (errorLevel<0) exit
|
||||
! if (errorLevel>0) stop "Warning: Error!"
|
||||
! x_sum=x_sum+x
|
||||
! y_sum=y_sum+y
|
||||
! x2_sum=x2_sum+x**2
|
||||
! y2_sum=y2_sum+y**2
|
||||
! xy_sum=xy_sum+x*y
|
||||
! i=i+1
|
||||
! end do
|
||||
! x_bar=x_sum/real(i)
|
||||
! y_bar=y_sum/real(i)
|
||||
! m=(xy_sum-x_sum*y_bar)/(x2_sum-x_sum*x_bar)
|
||||
! b=y_bar-m*x_bar
|
||||
! r=(real(i)*xy_sum-x_sum*y_sum)/sqrt((real(i)*x2_sum-x_sum**2)*(real(i)*y2_sum-y_sum**2))
|
||||
! ! 输出结果
|
||||
! if (abs(r)<0.3) write(*,*) 'Warning: r is too low!'
|
||||
! write(*,2) m, b, r
|
||||
! 2 format(1X, "方程拟合的结果为: y = ", F5.2, " x + ( ", F5.2, " ) , 相关系数为: ", F5.3)
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021-04-15 01:14:04 5.6.3 5-37
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的: 计算飞行器旋转半径
|
||||
! !
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021-04-15 01:14:04 Sola 编写源代码
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! REAL, PARAMETER :: g=9.8 ! 重力加速度, g/s^2
|
||||
! REAL, PARAMETER :: mach=340 ! 马赫, 声速, m/s
|
||||
! ! 声明变量
|
||||
! real :: a
|
||||
! real :: v
|
||||
! real :: r
|
||||
! integer :: i
|
||||
! ! 变量初始化
|
||||
! i=0
|
||||
! ! 输出数据
|
||||
! write(*,1)
|
||||
! 1 format(1X, "Form1. 飞行器转弯半径与飞行器速度关系表"/&
|
||||
! &1X, " v(m/s) r(m) "/&
|
||||
! &1X, "========== ======================")
|
||||
! do i=5,20,1
|
||||
! v=real(i)/10.*mach
|
||||
! a=2*g
|
||||
! r=v**2/a
|
||||
! write(*,2) v, r
|
||||
! 2 format(1X, T3, F8.1, T17, F17.3)
|
||||
! end do
|
||||
! write(*,3)
|
||||
! 3 format(1X, "========== ======================"/&
|
||||
! &/&
|
||||
! &1X, "Form2. 飞行器转弯半径与向心加速度关系表"/&
|
||||
! &1X, " a(m/s^2) r(m) "/&
|
||||
! &1X, "========== ======================")
|
||||
! do i=4,16,1
|
||||
! a=real(i)*0.5*g
|
||||
! v=0.85*mach
|
||||
! r=v**2/a
|
||||
! write(*,2) a, r
|
||||
! end do
|
||||
! write(*,4)
|
||||
! 4 format(1X, "========== ======================")
|
||||
|
||||
! end program name
|
||||
|
||||
! ! 2021-04-15 01:14:04 测试
|
||||
! program name
|
||||
|
||||
! implicit none
|
||||
! real :: error(-3:0)
|
||||
! error(-3)=0.00012
|
||||
! error(-2)=0.0152
|
||||
! error(-1)=0.0
|
||||
! write(*,500) error
|
||||
! 500 format(T6,"error = ",/,(3X,F6.4))
|
||||
|
||||
! end program name
|
||||
|
||||
! 2021-04-15 01:14:04 排序算法
|
||||
! program name
|
||||
! ! =============================================================
|
||||
! ! 目的: 对输入数据进行排序
|
||||
! ! 程序结构:
|
||||
! ! 打开文件
|
||||
! ! DO
|
||||
! ! 读入数据赋值给数组对应位置, 并获取错误代码
|
||||
! ! IF 错误代码 < 0 EXIT
|
||||
! ! 记录数+1
|
||||
! ! END DO
|
||||
! ! DO i从1到记录数-1
|
||||
! ! 最小值=数组(i)
|
||||
! ! 最小值位置=i
|
||||
! ! DO j从i+1到记录数
|
||||
! ! IF 数组(j)<最小值 THEN
|
||||
! ! 最小值=数组(j)
|
||||
! ! 最小值位置=j
|
||||
! ! END IF
|
||||
! ! END DO
|
||||
! ! IF 最小值位置/=i THEN
|
||||
! ! 数组(最小值位置)=数组(i)
|
||||
! ! 数组(i)=最小值
|
||||
! ! END IF
|
||||
! ! END DO
|
||||
! ! 输出数组
|
||||
|
||||
! ! 修订记录:
|
||||
! ! 日期 编程者 改动描述
|
||||
! ! =================== ============= ======================
|
||||
! ! 2021-04-15 01:14:04 Sola 编写源代码
|
||||
! ! 2021-04-15 01:14:04 Sola 防止数据溢出
|
||||
! ! 2021-04-15 09:48:33 Sola 避免错误数据
|
||||
! ! =============================================================
|
||||
! implicit none
|
||||
! ! 数据字典
|
||||
! ! 声明常量
|
||||
! REAL, PARAMETER :: PI=3.14159265 ! PI值
|
||||
! REAL, PARAMETER :: e=2.718281828459 ! 自然对数
|
||||
! ! 声明变量
|
||||
! integer, parameter :: arrayLength = 20 ! 数组长度
|
||||
! real, dimension(arrayLength) :: array ! 定义数组
|
||||
! integer :: errorLevel ! 错误代码
|
||||
! integer :: i, j, k ! 循环参数
|
||||
! integer :: minLocate ! 最小值位置
|
||||
! real :: min ! 最小值
|
||||
! logical :: excess ! 数据溢出判断参数
|
||||
! real :: temp ! 储存临时数值
|
||||
! ! 变量初始化
|
||||
! k=0
|
||||
! i=0
|
||||
! excess=.FALSE.
|
||||
! open(unit=1, status='scratch')
|
||||
! write(1,1)
|
||||
! 1 format(1X, "123.5"/&
|
||||
! &1X, "563"/&
|
||||
! &1X, "586.3"/&
|
||||
! &1X, "12"/&
|
||||
! &1X, "0"/&
|
||||
! &1X, "-l99"/&
|
||||
! &1X, "67"/&
|
||||
! &1X, "24"/&
|
||||
! &1X, "51"/&
|
||||
! &1X, "999"/&
|
||||
! &1X, "30"/&
|
||||
! &1X, "-1a11"/&
|
||||
! &1X, "666"/&
|
||||
! &1X, "787"/&
|
||||
! &1X, "720"/&
|
||||
! &1X, "98u0"/&
|
||||
! &1X, "985")
|
||||
! rewind(unit=1)
|
||||
! do
|
||||
! read(1,*,iostat=errorLevel) temp
|
||||
! if (errorLevel < 0) exit
|
||||
! i=i+1
|
||||
! if (errorLevel > 0) then
|
||||
! write(*,3) i
|
||||
! 3 format(1X, "程序在输入数据的第", I3, "行读取到非法输入，&
|
||||
! &请检查数据源，已跳过该数据")
|
||||
! ! 3 format(1X, I3)
|
||||
! cycle
|
||||
! end if
|
||||
! if (k < arrayLength) then
|
||||
! k=k+1
|
||||
! array(k)=temp
|
||||
! else
|
||||
! excess=.TRUE.
|
||||
! exit ! 从程序一般只有一个出口来看，这边最好不要有exit，，，
|
||||
! end if
|
||||
! end do
|
||||
! if ( .not. excess ) then
|
||||
! do i=1,k-1
|
||||
! minLocate=i
|
||||
! do j=i+1,k
|
||||
! if (array(j) < array(minLocate)) then
|
||||
! minLocate=j
|
||||
! end if
|
||||
! end do
|
||||
! if (minLocate /= i) then
|
||||
! min=array(minLocate)
|
||||
! array(minLocate)=array(i)
|
||||
! array(i)=min
|
||||
! end if
|
||||
! end do
|
||||
! write(*,2) array
|
||||
! 2 format(10(F7.2, 1X))
|
||||
! else
|
||||
! write(*,*) '输入参数过多！'
|
||||
! end if
|
||||
! close(unit=1)
|
||||
|
||||
! end program name
|
||||
Reference in New Issue
Block a user