參考代碼:
#include "stdio.h"
void *fun(char *s1,char *s2){
int i=0,j=0;
while(s1[i++]);
i--;
while(s2[j])
s1[i++]=s2[j++];
s1[i]='\0';
}
int main() {
char a[200],b[100];
gets(a);
gets(b);
fun(a,b);
puts(a);
return 0;
}
/*
運行結果:
qwerewr
asdfghj
qwerewrasdfghj
*/