用指针实现strcat 

 1 #include <stdio.h>
 2 int main(int argc, const char *argv[])
 3 {
 4     char a[45]="hello word";
 5     char b[45]="xjwkkk";
 6     char *p1=a;
 7     char *p2=b;
 8     while(*p1!='\0')
 9     {
10         p1++;
11     }
12     while(*p2!='\0')
13     {
14         *p1=*p2;
15         p2++;
16         p1++;
17     }
18     printf("%s\n%s\n",a,b);
19     return 0;
20 }

 

posted @ 2023-02-18 16:34  不思故乡  阅读(37)  评论(0)    收藏  举报