Question

这是一个计算5家商店销售额的计划，我应该创建一个程序，显示它今天的收入。这就是我到目前为止所做的：

#include <iostream>
using namespace std;

int main()
{
//stores 1-5 variables
int store1; int store2; int store3; int store4; int store5;
// calculations
int sale1; int sale2; int sale3; int sale4; int sale5;

int counter;



cout << "Please enter today's sales for store 1: " ;
cin  >> store1;
cout << "Please enter today's sales for store 2: " ;
cin  >> store2;
cout << "Please enter today's sales for store 3: " ;
cin  >> store3;
cout << "Please enter today's sales for store 4: " ;
cin  >> store4;
cout << "Please enter today's sales for store 5: " ;
cin  >> store5;


cout << endl << "Sales Bar Chart";
cout << endl << "Each asterisks (*) respresents $100" << endl;

sale1 = sale1 / 100;
sale2 = sale2 / 100;
sale3 = sale3 / 100;
sale4 = sale4 / 100;
sale5 = sale5 / 100;

cout << "Store 1: ";
    for ( counter = 0; counter < sale1; counter++)
            cout << '*';
    cout << endl << "Store 2: ";
    for ( counter = 0; counter < sale2; counter++)
            cout << '*';
    cout << endl << "Store 3: ";
    for ( counter = 0; counter < sale3; counter++)
            cout << '*';
    cout << endl << "Store 4: ";
    for ( counter = 0; counter < sale4; counter++)
            cout << '*';
    cout << endl << "Store 5: ";
    for ( counter = 0; counter < sale5; counter++)
            cout << '*';


    cin.get();
    cin.get();

我的问题是该程序假设输出这样的销售

Enter today's sales for store 1 : 100
Enter today's sales for store 2 : 200
Enter today's sales for store 3 : 300
Enter today's sales for store 4 : 400
Enter today's sales for store 5 : 500

销售条形图每个*代表100美元商店1：* 商店2：* 店铺3：* 店铺4：* 商店5：*

然而，我的输入只是放了很多这样的星号 http://tinypic.com/view.php?pic=9h0wh2&s=8#.VHJjb4vF-QM 我不知道我做错了什么。

Answer 1

基本上这里的问题只是一个错字/错误名称。

cout << "Please enter today's sales for store 1: " ;
cin  >> store1;

您输入store1，但在执行计算时您不会使用它，因为您有：

sale1 = sale1 / 100;
        ^^^^^
        oops?

你真的应该编译你的代码并启用所有警告并注意它们。在这种情况下，您很可能已收到有关使用未初始化的变量的警告。养成这样做的习惯，因为它将来会对你有很大的帮助。

销售条形图

1 个答案: