通过字符串函数连接两个字符数组:

#include "stdafx.h"
#include <iostream>
    
using namespace std;
void main()
{
    char str1[50], str2[30], *p1, *p2;
    p1 = str1;
    p2 = str2;
    cout << "please input string1:" << endl;
    gets_s(str1);
    cout << "please input string2:" << endl;
    gets_s(str2);
    strcat_s(str1, str2);//对字符串也行，对数组也行
    cout << "the new string is:" << endl;
    puts(str1);
}