c++ - 不能将字符串数组声明为类成员而不是 char (C++)

Question

我想为 10 本书添加一组标题，用户可以在每个可能包含多个单词的标题上添加/输入“字符串值”。我试图用“string”替换“char”，但运行程序时它不能正常工作！

#include <iostream>
using namespace std;
class Book {
  int year;
  char Title[10];  // the problem with in here
  int bookno;
  int copyno;
  int price;

 public:
  void Creatdata()  // Statement 1 : Defining Creatdata()
  {
    cout << "\n\tEnter Book published year : ";
    cin >> year;

    cout << "\n\tEnter Book title : ";
    cin >> Title;

    cout << "\n\tEnter Book number: ";
    cin >> bookno;
    cout << "\n\tEnter Copy number: ";
    cin >> copyno;

    cout << "\n\tEnter Employee Salary : ";
    cin >> price;
  }

  void DisplayData()  // Statement 2 : Defining DisplayData()
  {
    cout << "\n" << year << "\t" << Title << "\t" << bookno << "\t" << copyno
         << "\t" << price;
  }
};

int main() {
  int i;

  Book B[10];  // Statement 3 : Creating Array of 10 books

  for (i = 0; i <= 10; i++) {
    cout << "\nEnter details of " << i + 1 << " Book";
    B[i].Creatdata();
  }

  cout << "\nDetails of Book";
  for (i = 0; i <= 10; i++)
    B[i].DisplayData();
  return 0;
}

标签： c++arraysstringclass

Answer 1

你应该使用std::stringand std::getline：

class Book {
  int year;
  std::string title;
  int bookno;
  int copyno;
  int price;

 public:
  void Creatdata()  // Statement 1 : Defining Creatdata()
  {
    cout << "\n\tEnter Book published year : ";
    cin >> year;

    cout << "\n\tEnter Book title : ";
    std::getline(std::cin, title);

    cout << "\n\tEnter Book number: ";
    cin >> bookno;
    cout << "\n\tEnter Copy number: ";
    cin >> copyno;

    cout << "\n\tEnter Employee Salary : ";
    cin >> price;
  }
};

将std::getline()读取文本，直到找到换行符。
将operator>>跳过空格，然后阅读文本，直到找到空格（通常是一个文本单词）。