#include<stdio.h>
main()
{
    void exchange(int *q1,int*q2,int *q3);
    {
        int a,b,c,*p1,*p2,*p3;
        printf("please enter the number:");
        scanf("%d%d%d%d",&a,&b,&c);
            p1=&a;p2=&b;p3=&c;
        exchange(p1,p2,p3);
        printf("%d %d %d %d",a,b,c);
        return 0;
    }
    void exchange(int *q1,int *q2,int*q3)
    {void swap(int *pt1,int *pt2);
        if(*q1<*q2)swap(q1,q2);
        if(*q1<*q3)swap(q1,q3);
        if(*q2<*q3)awap(q2,q3);
    }
    void swap(int *pt1,int *pt2)
    {
        int temp;
        temp=*pt1;
        *pt1=pt2;
        *p2=temp;
    }

}

error C2601: 'exchange' : local function definitions are illegal
D:\新建文件夹\MyProjects\www\dww.cpp(25) : error C2601: 'swap' : local function definitions are illegal
执行 cl.exe 时出错.

dww.obj - 1 error(s), 0 warning(s)

函数的嵌套调用啊