如何解决如何在 C++ 中添加 getline?
我希望从我的作业的名称部分删除空格,这允许用户在我的产品列表中输入任何带有或不带有空格的名称。例如“电视架”,我认为 getline 函数会帮助我解决它,但我无法将 getline 函数添加到我的 main.js 中。有人可以帮我吗?
#include <bits/stdc++.h>
#include <iostream>
#include <string>
using namespace std;
struct product {
char product_name;
int no_of_purchase;
int no_of_sales;
double purchase_cost;
double selling_price;
double profit_loss;
double percent_profit_loss;
string product_sales;
};
bool Compare(product P1,product P2)
{
return P1.percent_profit_loss > P2.percent_profit_loss;
}
int main()
{
int n;
cout << "Enter the number of the product:";
cin >> n;
cout << "\n";
product Products[n];
for (int i = 0; i < n; ++i) {
cout << "Enter the name of the product: ";
cin >> Products[i].product_name;
cout << "Enter the number of " << Products[i].product_name << " purchased: ";
cin >> Products[i].no_of_purchase;
cout << "Enter the number of " << Products[i].product_name << " sold: ";
cin >> Products[i].no_of_sales;
解决方法
老实说我不明白你的问题,但这可能对你有帮助
我将 product_name
数据类型从 char
更改为 string
,因为 char
数据类型没有任何意义
#include <iostream>
#include <string>
using namespace std;
struct product {
string product_name;
int no_of_purchase;
int no_of_sales;
double purchase_cost;
double selling_price;
double profit_loss;
double percent_profit_loss;
string product_sales;
};
bool Compare(product P1,product P2)
{
return P1.percent_profit_loss > P2.percent_profit_loss;
}
int main()
{
int n;
cout << "Enter the number of the product:";
cin >> n;
cin.ignore();
cout << "\n";
product Products[n];
for (int i = 0; i < n; ++i) {
cout << "Enter the name of the product: ";
getline(cin,Products[i].product_name);
cout << "Enter the number of " << Products[i].product_name << " purchased: ";
cin >> Products[i].no_of_purchase;
cout << "Enter the number of " << Products[i].product_name << " sold: ";
getline(cin,Products[i].no_of_sales);
cin.ignore();
}
return 0;
}
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