Fortran - do while 循环构造


当给定条件为真时,它会重复一个语句或一组语句。它在执行循环体之前测试条件。

句法

do while (logical expr) 
   statements
end do

流程图

做一会儿

例子

program factorial  
implicit none  

   ! define variables
   integer :: nfact = 1   
   integer :: n = 1 
   
   ! compute factorials   
   do while (n <= 10)       
      nfact = nfact * n 
      n = n + 1
      print*,  n, " ", nfact   
   end do 
end program factorial  

当上面的代码被编译并执行时,它会产生以下结果 -

2             1
3             2
4             6
5            24
6           120
7           720
8          5040
9         40320
10        362880
11       3628800
fortran_loops.htm