Question

C语言指针。将两个int型对象的值互换。出错error C2100: illegal indirection

#include<stdio.h> void swap(int *nx,int *ny) { int temp=*nx; *nx=*ny;/*error C2100: illegal indirection*/ *ny=*temp; } int main(void) { int na,nb; puts("请输入2个整数。"); printf("整数A:"); scanf("%d",&na); printf("整数B:"); scanf("%d",&nb)... #include<stdio.h> void swap(int *nx,int *ny) { int temp=*nx; *nx=*ny;/*error C2100: illegal indirection*/ *ny=*temp; } int main(void) { int na,nb; puts("请输入2个整数。"); printf("整数A:"); scanf("%d",&na); printf("整数B:"); scanf("%d",&nb); swap(&na,&nb); puts("互换了两个数的值。"); printf("整数A:"); scanf("%d",&na); printf("整数B:"); scanf("%d",&nb); return(0); } 展开

Answer 1

在swap函数里：
*ny
=
*temp;
错误，temp
就是数据本身，不是指针，直接
*ny
=
temp;
即可。