c++ - 如何输入带空格的字符串？

Question

我想输入一个字符串(中间有空格)，我正在使用 cin.getline()。但是我遇到运行时错误(循环无限执行)。

class account
{
        int acno;
        int password;
        char name[50];
        char address[100];
        char sex;
        string phonenumber;
    public:
        void create_account();  //function to get data from user
        void show_account() const;  //function to show data on screen
        void modify();  //function to add new data
        void withdraw(int,int); //function to accept amount and subtract from balance amount
        void donate(int,int);   //function to accept amount and add to balance amount
        void report() const;    //function to show data in tabular format
        int retacno() const;    //function to return account number
        int retpassword() const;    //function to return password
};  // class definition

这是我为类(class)记录输入数据的函数。

void account::create_account()
{
    cout<<"\nEnter The account No. :";
    cin>>acno;
    cout<<"\n\nEnter The Name of The account Holder : ";
    cin.getline(name,49);
    cin.ignore();
    cout<<"\n\nEnter your Password (Max 8 characters) : ";
    cin>>password;
    cin.ignore();
    cout<<"\n\nEnter your Address : ";
    cin.getline(address,99);
    cin.ignore();
    cout<<"\nEnter your Contact Number: ";
    cin>>phonenumber;
    cin.ignore();
    cout<<"\nSex (Enter M for male and F for female): ";
    cin>>sex;
    cout<<"\n\n\nAccount Created..\n\n";
}

当我执行此操作时，如果我在字符串条目之间引入空格，则会出现运行时错误如果我不使用 cin.ignore() 函数，它会跳过字符串输入。

Answer 1

使用独立的 std::getline 函数，不是成员函数。前者在 std::string 上运行，因此您不必乱用原始指针。