运行环境，PC 64位，编译工具：Dec-C++
上个例子就清楚了。
#include <stdio.h>
typedef struct {
int num;
char name[10];
}Stu,*ptrStu;
int main(void)
{
Stu Tom = {10,"Tom"};
char *p = &Tom;
printf("num=%d,name=%s\n",p->num,p->name);//编译时出错，要对指针进行显式的类型转换
printf("num=%d,name=%s\n",(ptrStu)p->num,(ptrStu)p->name);
/*[Error] request for member 'num' in something not a structure or union。
()和->优先级相同，且从左到右结合。此处，不知为何出错，保险起见，加一个().*/
printf("num=%d,name=%s\n",((ptrStu)p)->num,((ptrStu)p)->name);//ok
return 0;
}
转载请注明原文地址: https://www.6miu.com/read-37486.html
