输入字符

Question

我有一个程序可以计算某些员工的薪水 我的问题是，当程序要求输入数年或加班小时时，我应该输入数字，但是如果输入char，程序将进入无限循环

        cout << "ENTER THE NUMBER OF YEARS :"<<endl;
        cin >> loyalty;// here is my problem
       while (loyalty>20)
       {
        cout << "the number you enter is not logic" <<endl;
        cout <<"ENTER THE NUMBER OF YEARS :" <<endl; 
        cin >> loyalty;
         }
        cout << "ENTER THE OVERTIME HOURS :"<<endl;
        cin >> overtime ;
        while (overtime>72) //to be more logic humen can't work more then 
        72hr as overtime hour per month (based on fact)
        {
        cout << "the number you enter is not logic" <<endl;
        cout << "ENTER THE OVERTIME HOURS :"<<endl;
        cin >> overtime ;

Answer 1

尝试将输入检索到char数组中，然后调用atoi（） 例如。 字符输入[10]; cin >> input;

int数字= atoi（输入）

如果char数组不包含有效数字，atoi将引发异常