测试交互函数函数
#pragma region 12.6.sayings1.cpp
//sayings1.cpp -- using expanded String class
//compile with string1.cpp
#if 1
#include <iostream>
#include"string1.h"
const int ArSize = 10;
const int MaxLen = 80;
int main()
{
using std::cout;
using std::cin;
using std::endl;
String name;
cout << "Hi,what's your name?\n";
cin >> name;
cout << nam