实现拷贝函数（strcpy）

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

// 函数声明
char *mystrcpy(char *object, char *source);

void main()
{
    char str[100];
    char *p = "Hello，15PB";

    printf("%s", mystrcpy(str, p));

    system("pause");
}

// 拷贝函数
char *mystrcpy(char *object, char *source)
{
    if (object == NULL || source == NULL)
    {
        return NULL;
    }

    char *pstr = object;

    while (*source != '\0')
    {
        *object = *source;
        object++;
        source++;
    }
    *object = *source;    // 处理'\0'

//     while ((*object++ = *source++))
//     {
// 
//     }
    return pstr;
}