哪错了，求大神看下。

#include<stdio.h>

#include<string.h>

int main()

{

char s1[100] = "";

char s2[] = "我爱，";

char s3[] = "慕课网";

strcpy(s1, s2);

strcat(s1, s3);

printf("%s\n", s1);

return 0;

}