我遇到 PHP 未從 Fortran 返回打印語句的問題。這個想法是 PHP 執行一個命令來編譯 Fortran 文件然后運行它。系統要求您通過 print 語句輸入一個數字，問題是沒有顯示在 CMD 上，但程序按預期工作 - 當我輸入“不正確”的數字時，它會等待我輸入“正確”的數字，然后完成執行。如何讓命令行打印 Fortran 文件中嵌套的語句？PHP 腳本$<?php// This is a script to test interoperability between Fortran and PHP$ExecutionStringOne = "gfortran C:\Users\****\Desktop\Programs\Fortran_Programs\FibSequence.f95 -o C:\Users\****\Desktop\Programs\Fortran_Programs\FibSequenceTest";$ExecutionStringTwo = "C:\Users\*****\Desktop\Programs\Fortran_Programs\FibSequenceTest.exe";exec ($ExecutionStringOne);exec ($ExecutionStringTwo);?>Fortran 代碼：! This program will calculate the first 7 numbers in the Fibonacci sequence with user input as well as error checking    Program FibSequence        implicit none        ! Defining our global variables         Integer :: acceptValue, n_terms          ! Accept Value: 0, 1 - This tracks whether input is correct (0 False, 1 True) , N_terms: Number of terms        real    :: timeForSubRoutineStart, timeForSubRoutineEnd, totalTime ! Tracks execution time of subroutine        write(*,*) "Please input an amount of terms to calculate sequentially to - This number can be between 1 and 7"        read *, n_terms        if (n_terms > 0 .AND. n_terms <= 7) then            acceptValue = 1                      ! This is true therefore run program (This isnt really needed but for consistency)            Call calculateSequence(n_terms)        else            acceptValue = 0                      ! This is false therefore run the read again and keep doing so until the output is correct            do while ( acceptValue == 0 )                write(*,*) "Invalid number please enter one within the given range - Range ( 1 - 7 )"                read *, n_terms                if (n_terms > 0 .AND. n_terms <= 7) then                     acceptValue = 1                     !Yay correct input                    Call calculateSequence(n_terms)編輯 - 添加了有關問題@roygvib 建議的 ECHO 的新圖像，它現在返回一些打印語句