能判断两个字符数组相等吗？

可以判断两个字符数组相等，需要使用比较函数strcmp()，该函数会比较两个字符串的内容，如果相等则返回0。示例代码如下：

#include <stdio.h>
#include <string.h>

int main() {
    char str1[] = "Hello";
    char str2[] = "Hello";
    char str3[] = "World";

    if (strcmp(str1, str2) == 0) {
        printf("str1 is equal to str2\n");
    } else {
        printf("str1 is not equal to str2\n");
    }

    if (strcmp(str1, str3) == 0) {
        printf("str1 is equal to str3\n");
    } else {
        printf("str1 is not equal to str3\n");
    }

    return 0;
}

输出结果为：

str1 is equal to str2
str1 is not equal to str3