在c ++中接受字符串空格的问题

Fru*_*der 0 c++ string

我写了这段代码来获取名字.一个人的电话和地址,然后我将这些输入到类对象变量中:

#include<iostream>
#include<cstdlib>
#include<fstream>
#include<string>
using namespace std;

class contact{
public:
    string name;//ALL CLASS VARIABLES ARE PUBLIC
    unsigned int phonenumber;
    string address;

    contact(){//Constructor
        name= "Noname";
        phonenumber= 0;
        address= "Noaddress";
    }

    /*void input_contact_name(string s){//function to take contact name
        name=s;
    }
    void input_contact_number(int x){//function to take contact number
        phonenumber=x;
    }
    void input_contact_address(string add){//function to take contact address
        address=add;
    }*/
};

int main(){
    contact *d;
    d= new contact[200];
    string name,add;
    int choice;//Variable for switch statement
    unsigned int phno;
    static int i=0;//i is declared as a static int variable
    bool flag=false;
    cout<<"\tWelcome to the phone Directory\n";//Welcome Message
    cout<<"Select :\n1.Add New Contact\n2.Update Existing Contact\n3.Delete an Existing Entry\n4.Display All Contacts\n5.Search for a contact\n6.Exit PhoneBook\n\n\n";//Display all options
    cin>>choice;//Input Choice from user
    while(!flag){//While Loop Starts
        switch(choice){//Switch Loop Starts
        case 1:
            cout<<"\nEnter The Name\n";
            cin>>name;

            d[i].name=name;
            cout<<"\nEnter the Phone Number\n";
            cin>>phno;
            d[i].phonenumber=phno;
            cout<<"\nEnter the address\n";
            cin>>add;
            d[i].address=add;
            i++;

            flag=true;
        }
    }
    return 0;
}
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但是,如果我输入用姓氏分隔的名称,代码将绕过下一个cins并退出.有人可以帮我解释为什么会这样吗?当我输入10位数单元格时,也会发生相同的情 提前致谢

ild*_*arn 6

使用std::getline()而不是operator>>提取std::string包含空格.

  • `operator >>`读取一个元素.通常,一个元素被认为是由下一个空格终止的,就像std :: string和所有基元一样.正如答案所说,`std :: getline`是你的朋友. (3认同)