我试图获取用户输入，并且应该包含一个空格，因为我要输入全名。因此，我使用了getline方法，但无法正确输入数据。这是代码：
#include <iostream>
#include <string>
string name, mobile, landline, work;
cout << "Enter the name of the contact to be added:";
getline(cin, name);
cout << "Enter the mobile number of this contact:";
getline(cin, mobile);
cout << "Enter the landline number of this contact:";
getline(cin, landline);
cout << "Enter the work number of this contact:";
getline(cin, work);
当我运行程序时，我得到的是：
Enter the name of the contact to be added:Enter the mobile number of this contact:
这是主要方法：
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/*
* File: main.cpp
* Author: Gaby
*
* Created on March 25, 2020, 7:14 PM
*/
#include "Contact.h"
#include "DCSList.h"
#include <iomanip>
#include <fstream>
#include <sstream>
using namespace std;
void showMenu();
void saveChanges(ofstream& file, DCSList& list);
/*
*
*/
int main(int argc, char** argv) {
fstream file; //This is the file we read from
ofstream outputFile; //This is the file we will write on at the end
string name, numberString; //Strings to extract the data from the file
string numbers[3]; //string array of numbers
string numberExtracted; //Used to extract each number from the numberString
string numbOfContacts; //Number of Contacts we want to read from file
int number; //Integer variable of the parsed value of the number read
int counter = 1; //Number of contacts read from file
int choice = 0; //Choice of user
DCSList list;
file.open("./ContactList.txt");
if(file.is_open()){
//If file is open then read from it
//First get the number of contacts in list
getline(file, numbOfContacts);
//Convert the number in the file to an integer
stringstream count(numbOfContacts);
//Set the value of number
count >> number;
while(counter <= number){
//Extract the name of the contact
getline(file, name);
//Extract the mobile, work and home numbers
getline(file, numberString);
//We will need to split the numberString with the - as delimiter
stringstream ss(numberString);
int i = 0; //Counter for numbers
while(getline(ss, numberExtracted, '-')){
numbers[i] = numberExtracted;
i++;
}
//Create a Contact object and add the contact to the list
Contact c(name, numbers[0], numbers[1], numbers[2]);
list.addNode(c);
counter++;
}
//Write on the other file
outputFile.open("NewContactList.txt");
if (outputFile.is_open()){
list.start();
while(list.hasNext()){
outputFile << list;
list.operator ++();
}
}
else{
cout << "File not opened!" << endl;
}
outputFile.close();
}
else{
cout << "File is not opened!" << endl;
}
file.close();
do{
showMenu();
cin >> choice;
switch(choice){
case 1:{
list.start();
while(list.hasNext()){
cout << list;
list.operator ++();
}
break;
}
case 2:
{
string name, mobile, landline, work;
cout << "Enter the name of the contact to be added:";
getline(cin, name);
cout << "Enter the mobile number of this contact:";
getline(cin, mobile);
cout << "Enter the landline number of this contact:";
getline(cin, landline);
cout << "Enter the work number of this contact:";
getline(cin, work);
//Create a contact object
Contact contact(name, mobile, work, landline);
//Add contact to list
list.addNode(contact);
}
break;
case 3:
{
string contactToDelete;
cout << "Enter a contact name or "
"any mobile, work, land number :";
cin >> contactToDelete;
if (list.deleteNode(contactToDelete)){
cout << "Contact has been deleted!" << endl;
}
}
break;
case 4:
{
string searchCriteria;
cout << "Enter a contact name or "
"any mobile, work, land number :";
getline(cin, searchCriteria);
if (list.searchNode(searchCriteria)){
cout << list;
}
else{
cout << "No contact found!" << endl;
}
break;
}
case 5:
{
cout << "Thank you for using the program." << endl;
cout << "All changes applied will be "
"saved to the output file" << endl;
//Write on the other file
outputFile.open("NewContactList.txt");
if (outputFile.is_open()) {
list.start();
while (list.hasNext()) {
outputFile << list;
list.operator++();
}
} else {
cout << "File not opened!" << endl;
}
file.close();
return 0;
}
default:{
cout << "Please enter a valid value to do an operation!" <<endl;
break;
}
}
}while(choice != 1 || choice != 2 ||
choice != 3 || choice != 4 || choice != 5);
return 0;
}
void showMenu(){
cout << "-------------PHONEBOOK-------------" << endl;
cout << "Enter a number according to "
"the operation you want to do: " << endl;
cout << "1. Show phone book" << endl;
cout << "2. Add new contact" << endl;
cout << "3. Delete a contact" << endl;
cout << "4. Search for a contact" << endl;
cout << "5. Exit program" << endl;
}
我无法分别输入每个值。
您知道如何解决此问题吗？
谢谢您的帮助。
@ NathanOliver如何怀疑您使用了cin。在第111和153行的主要方法中（如果采用与上述相同的格式），您可以找到它们。也尝试将它们更改为getline（）。应该可以。