Question

对于我的任务，我被要求这样做：

从名为“sales.txt”的文件中读取销售值，并将表示这些值的条形图输出到名为“graph.txt”的文件中。通过显示一行星号在条形图中创建每个条形。每个星号应代表100英镑的销售额销售价值为：

图表应如下所示：

SALES BAR CHART
(each * equals £100)
Store 1: **********
Store 2: *****
Store 3: ************
Store 4: ******
Store 5: **

这是我到目前为止所做的代码：

#pragma once //stops duplicate library 
#include<iostream>
#include<string>
#include<fstream>
#include<vector>

using namespace std;

class SalesData
{
private:
ifstream inputfile;
ofstream outputfile;
vector<int> salesrecord;

public:

void loadDataFromFile(string filename);
void saveBarChartToFile(string filename);
};

void SalesData::loadDataFromFile(string filename)
{
ifstream sales;
sales.open("Sales.txt",ios::in);

cout << "opening file." << endl; 

sales.close(); 
}

void SalesData::saveBarChartToFile(string filename)
{

ofstream graph;
graph.open("Graph.txt", ios::out);

graph << "SALES BAR CHART" << endl;
graph << " (each * equals £100)" << endl;

graph.close();
}

int main()
{
vector<int> salesrecord(5);
for (int i = 0; i < 0; i++)
{
    salesrecord[i] = i;
}
SalesData Mydata;

return 0; 
}

C ++从文件中读取数据并创建星号条形图

0 个答案: