input.txt

对c语言的简单语法分析器 文件说明： input.txt内为输入的源程序

/* This is a test for the Lexical Analyzer.
   It can be the input file.  */

#include"stdio.h"

int main()
{
   int num = 0;
   for(int i = 0; i<10; i++)
   {
       num++;
   }
   while(num>=5)
   {
       num = num-1;     /*the result is -1*/
   }
   if(num<0)
   {
      printf("success!\n");
   }
   else
   {
      num--;
   }
   return 0;
}