C语言run-time check failure #2 - stack around the variable 'H' was corrupted.报错

Question

C语言报错

run-time check failure #2 - stack around the variable 'H' was corrupted.

#include <stdio.h>
#include <stdlib.h>

void main() {
    char H = 'A';
    int* p = &H;    
    *p = 'B';
    printf("H的值为：%c\n", H);
    printf("p存储的地址为：%p\n", p);
    printf("p的地址为：%p\n", &p);

    H = 'C';
    printf("H='C';的值为：%c\n", H);
    printf("通过地址获取的为：%c\n", *p);
    system("pause");
}

运行一切正常，在systeam("pause");执行完成后，Main函数结束大括号报错：run-time check failure #2 - stack around the variable 'H' was corrupted.

我看了半天也没找到问题，局部变量什么的都看了，H在运行全过程的值都是正常的char类型
请求帮助

Answer 1

这是你用int*造成的，它指向整型空间，占4字节，而指向的H只是字符型，占一个空间。 * p='B'，是错误根据，它导至了对溢出空间的赋值