6_71.cpp

10个比较经典的C++程序。初学者就先多学习学习别人吧。

#include <iostream>
#include <string>
using namespace std;
int main()
{  string str1( "one" ),str2( "two" );
   cout << "Before swap:\nstr1: " << str1 << "\nstr2: " << str2;  //输出字符串
   str1.swap( str2 );  										//交换字符串
   cout << "\nAfter swap:\nstr1: " << str1 << "\nstr2: " << str2 << endl;
   return 0;
}