对拍程序

原来还有这个好东西，感谢这位博主的分享~
https://blog.csdn.net/wlx65003/article/details/51149196

一下是.bat文件，记下来以后好用：

duipa_single.bat

rand.exe > in.txt
my.exe < in.txt
std.exe < in.txt
my.exe < in.txt > myout.txt
std.exe < in.txt > stdout.txt
fc myout.txt stdout.txt
pause

duipai_while.bat

@echo off  
:loop  
    rand.exe > in.txt
    my.exe < in.txt > myout.txt
    std.exe < in.txt > stdout.txt
    fc myout.txt stdout.txt
if not errorlevel 1 goto loop  
pause
goto loop