#include <iostream>
using namespace std;
int main(void) {
      int salary;
      cout << "你月薪多少?";
      cin >> salary;
      if (salary < 20000) {
            cout << "你是一个好人, 我还不想谈恋爱." << endl;
      }
      system("pause");
      return 0;
}

#include <iostream>
using namespace std;
int main(void) {
      int salary;
      cout << "你月薪多少?" << endl;
      cin >> salary;
      if (salary < 20000) {
            cout << "你是一个好人, 我还不想谈恋爱." << endl;
      } else {
            cout << "我没有什么要求, 只要你对我好就行." << endl;
      }
      system("pause");
      return 0;
}

#include <iostream>
#include <string>
#include <stdio.h>
using namespace std;
int main(void)
{
      int salary;
      string houseRet;  //是否有房
      string carRet; //是否有车
      cout << "你的月薪是多少?" << endl;
      cin >> salary;
      cout << "你有房吗？" << endl;
      cin >> houseRet;
      cout << "你有车吗？" << endl;
      cin >> carRet;
      if (salary < 20000) {
            cout << "你是一个好人， 我现在还不想谈恋爱." << endl;
      } else if (houseRet == "有") {
            cout << "我其实没有什么要求，只要你对我好." << endl;
      } else if (carRet == "有") {
            cout << "还不错哦， 以后再联系." << endl;
      } else {
            cout  << "有缘再见." << endl;
      }
      system("pause");
      return 0;
}

#include <iostream>
#include <windows.h>
using namespace std;
int main(void) {
       int x, y, z;
       cout << "请输入3个整数: " << endl;
       cin >> x  >> y >> z;
       if (x > y) {
              if (x > z) {
                     cout << "最大值是： " << x << endl;
              } else {
                     cout << "最大值是： " << z << endl;
              }
       } else {
              if (y > z) {
                     cout << "最大值是： " << y << endl;
              } else {
                     cout << "最大值是： " << z << endl;
              }
       }
       system("pause");
       return 0;
}

#include <iostream>
#include <windows.h>
using namespace std;
int main(void) {
       int num;
       cout << "请输入一个数字: ";
       cin >> num;
       switch (num) {
       case 1:
              cout << "星期一：包子" << endl;
              break;
       case 2:
              cout << "星期二：馒头" << endl;
              break;
       case 3:
              cout << "星期三：稀饭" << endl;
              break;
       case 4:
              cout << "星期四：白菜" << endl;
              break;
       case 5:
              cout << "星期五：土豆" << endl;
              break;
       case 6:
       case 7:
              cout << "周末：休息" << endl;
              break;
       default:
              cout << "请输入1-7" << endl;
              break;
       }
       system("pause");
       return 0;
}