10.2总结

#include <iostream>using namespace std;class MyString
{
private:string pos1;string pos2;
public:MyString(){}MyString(string pos1,string pos2):pos1(pos1),pos2(pos2){cout << "调用了有参构造" << endl;}MyString(const MyString &other):pos1(other.pos1),pos2(other.pos2){cout << "调用了拷贝构造函数" << endl;}const MyString operator+(const MyString &R)const{MyString t;t.pos1 = pos1+R.pos1;t.pos2 = pos2+R.pos2;return  t;}const MyString operator>(const MyString &R)const{MyString t;t.pos1 = (pos1>R.pos1)?"true":"false";t.pos2 = (pos2>R.pos2)?"true":"false";return  t;}const MyString operator<(const MyString &R)const{MyString t;t.pos1 = (pos1<R.pos1)?"true":"false";t.pos2 = (pos2<R.pos2)?"true":"false";return  t;}const MyString operator==(const MyString &R)const{MyString t;t.pos1 = (pos1==R.pos1)?"true":"false";t.pos2 = (pos2==R.pos2)?"true":"false";return  t;}void input(){cout << "请输入pos1: ";cin >> pos1;cout << "请输入pos2: ";cin >> pos2;}void output() const{cout << "pos1: " << pos1 << ", pos2: " << pos2;}void show(){cout << "pos1的长度为" << pos1.size() << endl;cout << "pos2的长度为" << pos2.size() << endl;cout << "pos1= " << pos1 << " " << "pos2= " << pos2 << endl;}};int main()
{//    MyString s1("z","x");//    MyString s2("b","a");MyString s1;s1.input();// s1.output();MyString s2;s2.input();//s2.output();MyString s =s1+s2;MyString s3 =s1>s2;s.show();s3.show();return 0;
}