Question

一个简单的C++ while 循环问题

//初学C++ 麻烦哪位大神教导一下，我想得到的效果是 可以循环的输入 工作时间 和工作时薪 直到工
//作时间输入等于0时才跳出循环 结束
//用的是VS 2010 C++ 谢谢了
#include<iostream>
using namespace std;

int main()
{
int worktime,wage_per_hour,wage;
cin>>worktime;
while (worktime != 0)
{

cout<<"Please input employee’s work time and wage_per_hour:"<<endl;
cin>> worktime >> wage_per_hour;

if(worktime<=40)
{

wage = wage_per_hour * worktime;
cout<<"The employee’s wage :"<<wage<<endl;
system("pause");
return 0;
}
else
if(worktime>40,worktime<=50) //当 工作时间在40-50之间时 执行下列语句
{

wage = wage_per_hour * 40 + (worktime-40) * wage_per_hour * 1.5;
cout<<"The employee’s wage :"<<wage<<endl;
system("pause");
return 0;

}
else
wage = wage_per_hour * 40 + wage_per_hour * 10 ;
wage = wage + wage_per_hour * (worktime - 50) * 3;
cout<<"The employee’s wage :"<<wage<<endl;
system("pause");
return 0;

}

}

Answer 1

#include<iostream>
using namespace std;
int main()
{
 int worktime,wage_per_hour,wage; 
 //cin>>worktime;
 do    
 {
      cout<<"Please input employee's work time and wage_per_hour:"<<endl;  
      cin>> worktime >> wage_per_hour;
        if(worktime<=40)         
     {     
    wage = wage_per_hour * worktime;
       cout<<"The employee's wage :"<<wage<<endl;
        }
      else
      if(worktime>40 && worktime<=50) //当 工作时间在40-50之间时 执行下列语句
   { 
   
       wage = wage_per_hour * 40 + (worktime-40) * wage_per_hour * 1.5;
       cout<<"The employee's wage :"<<wage<<endl;
   }
   else                      
  {
   
        wage = wage_per_hour * 40 + wage_per_hour * 10 ;
     wage = wage + wage_per_hour * (worktime - 50) * 3;
     cout<<"The employee's wage :"<<wage<<endl;
        }
  // cin>>worktime;
   }while (worktime != 0);
      system("pause");
   return 0;
}

你的循环里度直接return 0了，不可能执行多次。

另外 if(worktime>40,worktime<=50) //当 工作时间在40-50之间时 执行下列语句

这行应该是 ： if(worktime>40 && worktime<=50) //当 工作时间在40-50之间时 执行下列语句

Answer 2

#include<iostream>
using namespace std;
int main()
{
int worktime,wage_per_hour,wage;
while (1)
{

cout<<"Please input employee’s work time and wage_per_hour:"<<endl;
cin>>worktime;
if(worktime==0)
{
exit(worktime);
}
cin>>wage_per_hour;
if(worktime<=40)
{
wage = wage_per_hour * worktime;
cout<<"The employee’s wage :"<<wage<<endl;
system("pause");
}
else
if(worktime>40,worktime<=50) //当 工作时间在40-50之间时 执行下列语句
{

wage = wage_per_hour * 40 + (worktime-40) * wage_per_hour * 1.5;
cout<<"The employee’s wage :"<<wage<<endl;
system("pause");
}
else
{
wage = wage_per_hour * 40 + wage_per_hour * 10 ;
wage = wage + wage_per_hour * (worktime - 50) * 3;
cout<<"The employee’s wage :"<<wage<<endl;
system("pause");
}
}
return 0;
}