• 【数组名】是一个常量
• strcpy：被拷贝的区域，必须有【足够的空间】容纳
• strcpy的逻辑：先拷贝，再判断，再++

#include <stdio.h>

char* my_strcpy(char* dest, const char* src)
{
    char* res = dest;
    while (*dest ++ = *src ++);
    return res;
}

int main()
{
    char name[200];
    char name2[200];
    char *pName = "China";

//    strcpy(name, pName);
//    printf("name = %s\n", name);

    my_strcpy(name, my_strcpy(name2, pName));
    printf("name = %s\n", name);

    return 0;
}