Question

我正在尝试在Mac上使用C ++中的C ++读取文件。我通常在课堂上阅读Windows计算机上的文件，这是一个更容易的过程，但在我的Mac上它打印文件的名称而不是文件的内容。

这是我的代码：

#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>


using namespace std;




//Function Prototypes for reading grades and calculations
void findMaxGrade (double [], double);
void findMinGrade ( double [], double);
void findAverageGrade (double [], double);

const int GRADES = 10; // Array size

int main()
{

double number [GRADES]; //The Array has 10 elements
ifstream inputFileStream;

//Set up file path
string readGrades = ("/home/Lidah/Desktop/grades.txt");

//Store values in the Array
for (int counter = 0; counter < GRADES ; counter++)
{
    number [counter] = counter;
}

// Check if file opened correctly
if (! inputFileStream)
{
    cout << " Unable to open file for reading! ";
    return 1;
}

//read contents of the file
inputFileStream.open (readGrades); //Come back and fix this format!


for (int counter = 0; counter < GRADES; counter++)
{

  cout << readGrades << endl;

}

inputFileStream.close();




return 0;
}


//Define the function

Answer 1

您实际上并没有读取文件，但是您正在使用文件路径打印字符串。您需要读取输入流，例如：

inputFileStream.open(readGrades);

std::string grade;
while (std::getline(inputFileStream, grade)){
    cout << grade;
}

在CLion中在Mac上输入文件。

1 个答案: