C6054警告:可能没有为字符串添加字符串零终止符

当用一个字符数组作为字符串的缓冲区时,在定义数组时一定要初始化为0.

否则会提示C6054警告.

#include <stdio.h>
#include <string.h>
#define MAX_LENGTH 10

int main(void)
{
    char str[MAX_LENGTH] = { 0 };
    scanf_s("%s", str, MAX_LENGTH);
    size_t len = strlen(str);
    printf("str = [%s]\n", str);
    printf("len = %u\n", len);
    return 0;
}