Question

我的代码中似乎有什么问题？

输入年龄后，当我按 Enter 时，提示已经结束而无需询问我的地址。我知道我可以使用getline()作为年龄，但是如果用户输入非整数答案怎么办？

对不起，我昨天才开始编码，我想学习基础知识。

#include <iostream>

using namespace std;

int main()
{
    int age;
    string name, address;

    cout << "Please enter the name of the user:" << endl;
    getline(cin, name);

    cout << "Please enter age of the user:" << endl;
    cin >> age;

    cout << "Please enter the address of the user:" << endl;
    getline(cin, address);

    cout << "Your name is " << name << " and you are " << age 
     << " years old " << " who lives in " << address << endl;

    cout << "Thank you for using my program!";


    return 0;
}

Answer 1

只需在“ cin >> age”之后添加“ cin.ignore（）”，即可：

cout << "Please enter age of the user:" << endl;
cin >> age;
cin.ignore();
cout << "Please enter the address of the user:" << endl;
getline(cin, address);

当getline（）读取输入时，在输入流中会保留一个换行符，因为它不会读取程序中的字符串（地址）。

如果用户输入的是'float'或'double'等，而不是年龄为'int'，则它将简单地从中提取整数，例如：如果用户输入39.29或39.00005或39.00或age = 39

To know more about getline check the following link:

刚刚开始编写C ++

1 个答案: