痛苦的回忆!!!(麻烦的操作)

编写实现strcat同功能的函数stringCatch。

void stringCatch(char a[],char b[]){

int i = 0;

int j = 0;

char c[200] = "";

unsigned long len1 = strlen(a);

//unsigned long len2 = strlen(b);

while (b[j] != '\0') {

if (i < len1) {

c[i] = a[i];

}

if (c[i] == '\0') {

c[i] = b[j];

j++;

}

i ++;

}

//    c[i + 1 + j] = '\0';

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

}