模拟strcat函数：连接两个字符串

#include<stdio.h>
#define MAX 200

int main()
{
    char str1[MAX];
    char str2[MAX*2];
    
    char *target1=str1;
    char *target2=str2;
    
    printf("请输入一个字符串:");
    fgets(str1,MAX,stdin);
    
    printf("\n");
    
    printf("请输入第二个字符串");
    fgets(str2,MAX,stdin);
    
    while(*target1++ !='\0') 
        ;
    
    target1-=2;
    
    while((*target1++ = *target2++)!='\0')
        ;
        
        printf("str1的值是：%s",str1);
    
    return 0;
}