#include"stdio.h"
void main()
{
    int m,n,i;
    printf("input m,n:\n");
    scanf("%d%d",&m,&n);
    int cmn(int,int);
    printf("%d",cmn(m,n));
    scanf("%d",&i);
}
int cmn(int x,int y)
{
    int fac(int);
    int d;
    d=fac(x)/(fac(y)*fac(x-y));
    return(d);
}
int fac(int k)
{
    int j,s;
    for(j=1,s=0;j<=k;j++)
        s*=j;
    return(s);
}

编译显示没有错误
运行就显示    Unhandled exception inCpp1.exe;0xC0000094;Integer Divide by Zero.

话说为什么我这边不能上传附件？

下面显示这个
Loaded 'APP01.EXE', no matching symbolic information found.
Loaded 'H:\Windows\SysWOW64\kernel32.dll', no matching symbolic information found.
Loaded 'H:\Windows\SysWOW64\KernelBase.dll', no matching symbolic information found.
First-chance exception in Cpp1.exe: 0xC0000094: Integer Divide by Zero.

谢谢 我自己找到错误了。。fac（）函数里把s初值定义成立了0

嗯 谢谢