题解 | #字符串连接#

#include <stdio.h>
#define MAX 101
int main() {
    char str1[MAX], str2[MAX];
    while (scanf("%s %s", &str1, &str2) != EOF) { // 注意 while 处理多个 case
        char s[2*MAX];
        int i = 0,j = 0;
	  //先把str1的字符存入到s字符数组中
        while (str1[i] != '\0'){
            s[j++] = str1[i++];
        }
        i = 0;//i重新置0
	  //再将str2的字符接到s数组后面
        while (str2[i] != '\0'){
            s[j++] = str2[i++];
        }
        s[j] = '\0';	//s尾 置字符串结束符\0
        printf("%s\n", s);
    }
    return 0;
}