输入后无限循环

Question

所以我一直在做作业，我偶然发现了一个问题。在我为我的程序输入部分日期后，它就进入了无限循环。这个想法是创建一个由结构条目组成的数组。我不确定问题似乎来自哪里，因为它只是开始不停地打印出“您的选择：”。这是我的代码：

        #include <iostream>
    using namespace std;

    struct property {
      int num;
      char nBrok[50];
      char type[10];
      char adress[50];
      char outlook[20];
      double price;
      double size;
      int nRooms;
      int floor;
      char status[2];
    };

    int menu() {
      int ch;
      cout<<"Choose an option from 1-5."<<endl;
      cout<<"1. Add property."<<endl;
      cout<<"2."<<endl;
      cout<<"3."<<endl;
      cout<<"4."<<endl;
      cout<<"5. Exit"<<endl;
      do {
        cout << "\nYour Choice: ";
        cin>>ch;
      } while (ch<1 || ch>5);
      return ch;
    }

    void addProp(property bDanni[]) {
      int count;
      cout<<"1. Add property."<<endl;
      cout<<"How many real estate properties would you like to add?"<<endl;
      cin>>count;
      for(int i=0; i < count; i++)
      {
        cin.ignore();
        cout<<"Enter the entry number of the property: "; cin>>bDanni[i].num;
        cout<<"Enter the name of the property's broker: "; cin.getline(bDanni[i].nBrok, 50);
        cin.ignore();
        cout<<"Enter the type of the property: "; cin.getline(bDanni[i].type, 10);
        cin.ignore();
        cout<<"Enter the adress of the property: "; cin.getline(bDanni[i].adress, 50);
        cin.ignore();
        cout<<"Enter the outlook of the property: "; cin.getline(bDanni[i].outlook, 20);
        cin.ignore();
        cout<<"Enter the price of the property: "; cin>>bDanni[i].price;
        cout<<"Enter the size of the property: "; cin>>bDanni[i].size;
        cout<<"Enter the number of rooms of the property: "; cin>>bDanni[i].nRooms;
        cout<<"Enter the floor of the property: "; cin>>bDanni[i].floor;
        cout<<"Enter the status the property: "; cin.getline(bDanni[i].status, 2);
        cin.ignore();
      }
    }

    int main() {
      property bDanni[100];
        int choice;
        do {
          choice = menu();
          switch (choice) {
            case 1: addProp(bDanni);break;
          }
        }while (choice !=5);

      return 0;
    }

Answer 1

我是个笨蛋，清除缓冲区应该发生在 getline 之前，使用它是因为 cin 跳过了间隔。很抱歉浪费了大家的时间。

Answer 2

在使用cin后准备使用getline时使用cin.ignore()。因为cin在缓冲区中留下了空字符。

输入后无限循环

Infinite loop after input

c

c++

arrays

struct

structure