如何阻止程序跳过getline？ [英] How do I stop program from skipping over getline?

问题描述

这是我的主程序，

  int main（）{
 
 string command; 
 cin>>命令; 
 
 if（command ==keyword）
 {
 string str，str2，str3，str4; 
 
 cout<< 输入名字：; 
 getline（cin，str）; 
 
 cout<< 输入姓氏：; 
 getline（cin，str2）; 
 
 cout<< 输入年龄：; 
 getline（cin，str3）; 
 
 cout<<输入国家：; 
 getline（cin，str4）; 
 
 cout<< 谢谢，<< str <<<< str3<<< str3<< .\\\
; 
} 
} 
  

输入关键字时，程序立即输出： / p>

输入名字：输入姓氏：

完全绕过输入名字的能力。

解决方案

  string command; 
 cin>>命令; 
  

之后就吃完了

  string restOfLine; 
 getline（cin，restOfLine）; 
  

否则，不输入命令的行中的'\\\
'只读它。 HTH

This is my main program,

int main () {

    string command;
    cin>>command;

    if(command == "keyword")
    {
        string str, str2, str3, str4;

        cout << "Enter first name: ";
        getline (cin,str);

        cout << "Enter last name: ";
        getline (cin,str2);

        cout << "Enter age: ";
        getline (cin,str3);

        cout<<"Enter country: ";
        getline (cin,str4);

        cout << "Thank you, " << str <<" "<<str2 <<" "<<str3<<" "<<str4<< ".\n";
    }
}

When keyword is entered, the program immediately outputs :

Enter first name: Enter last name:

completely bypassing the ability to enter the first name.

解决方案

string command;
cin>>command;

after this just eat the end of the line

string restOfLine;
getline(cin, restOfLine);

Otherwise the '\n' in the line where you input command is not consumed and the next readline reads just it. HTH

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