实现字符串的链接 指针的妙用

#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
char *strca(char *dst, const char *src)
{      
        char *dst_t = (char *)malloc(sizeof(dst)+sizeof(src));
        char *start  = dst_t;
       
        assert(dst && src);
       
        while(*dst_t = *dst){
                dst_t++;
                dst++;
               
        }
        while(*dst_t = *src)
        {
                dst_t++; src++;
        }
        *dst_t = '\0';
        return start;
}

int main()
{
        char *dst = {"wo ai "};
        char *src = {"wo de guo jia !"};
        printf("%s\n",strca(dst,src));
        return 0;
}

实现了字符串的链接，中间用到的指针的相关知识，今天没有时间了。以后再做解释吧