利息计算器

[cpp] view plaincopyprint?    #include<iostream>      using namespace std;       int main()        {            int  type, days;            double money, period, rate, interest;            cout << "欢迎使用利息计算器！"<<endl;          cout << "请输入存款金额：";            cin >> money;            cout << "======存款期限======" << endl;            cout << "1. 活期存款" << endl;          cout << "2. 3个月 " << endl;          cout << "3. 6个月" << endl;          cout << "4. 一年 " << endl;          cout << "5. 二年" << endl;          cout << "6. 三年" << endl;          cout << "7. 五年" << endl;          cout << "请输入存款期限的代号：";          cin >> type;          if (type>=1 && type <=7)          {              switch(type)　　//在if中嵌入了switch分情况处理              {              case 1:                   cout<<"请输入存款天数：";                  cin >> days;                  period = days/360.0;                  rate = 0.005;                  break;              case 2:                  period = 0.25;                  rate = 0.031;                  break;              case 3:                  period = 0.5;                  rate = 0.033;                  break;              case 4:                  period = 1;                  rate = 0.035;                  break;              case 5:                  period = 2;                  rate = 0.044;                  break;              case 6:                  period = 3;                  rate = 0.05;                  break;              case 7:                  period = 5;                  rate = 0.055;                  break;                    }              interest = money * period * rate;              cout << "到期利息为：" << interest << "元，本息合计共"<< interest + money <<"元。"<<endl;            }          else              cout << "选择存款类型错误！"<<endl;          cout << "感谢您的使用，欢迎下次光临！"<<endl;            return 0;        }