求:C++读取txt文件数据--42行，43列。要求各列输出成数组。

注意是c++ 数据是这样的
0 1 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 0 0 1 1 0 1 0 0 1 1 1 1 
0 0 0 0 0 1 0 1 1 0 1 1 0 0 0 1 0 1 0 0 1 1 1 0 1 0 0 0 0 0 1 0 1 1 0 1 1 1 1 1 1 1 1 
0 0 0 1 0 0 0 1 0 1 1 1 1 1 1 1 1 0 0 1 1 0 1 0 0 0 0 1 0 0 1 1 1 1 0 0 0 1 0 1 0 0 1 
1 1 0 0 1 1 0 1 0 1 0 1 0 1 1 1 1 0 1 0 0 0 1 1 1 1 0 0 0 1 1 1 1 0 0 0 0 1 0 0 0 0 0 
0 1 0 0 0 0 0 1 0 1 0 1 0 1 1 1 0 0 0 0 0 0 1 1 0 1 1 1 0 1 0 0 1 0 1 1 1 0 1 1 0 0 0 
0 1 1 1 0 1 1 1 0 0 1 1 0 1 0 0 1 1 1 0 0 0 0 1 0 0 1 1 1 1 0 1 0 0 1 0 1 1 0 0 0 0 1 
0 1 1 0 0 1 0 1 0 1 0 1 1 1 0 0 0 0 0 1 1 1 1 0 1 1 0 1 0 1 0 1 1 0 0 1 1 1 1 0 1 0 1 
1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 1 0 0 1 0 0 1 0 0 1 0 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 
0 0 1 1 0 0 1 1 0 1 0 0 1 0 1 0 0 0 1 0 1 1 0 0 0 0 0 1 1 1 1 0 0 1 0 1 1 1 1 0 0 1 0 
0 0 0 0 1 0 0 0 0 0 0 0 1 1 1 1 0 1 0 1 0 1 1 0 0 0 0 1 0 0 1 1 0 1 0 1 1 1 1 1 1 0 0 
0 1 1 0 1 1 0 1 0 0 1 1 1 0 0 0 0 0 0 0 1 1 0 1 0 0 1 1 0 0 1 0 1 0 1 1 0 0 0 0 1 0 0 
1 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 0 0 0 1 1 1 1 0 1 1 1 0 1 1 1 1 0 0 0 0 0 1 1 1 0 0 0 
1 0 0 1 0 1 0 1 1 0 1 0 1 1 1 0 0 1 0 1 1 1 1 1 1 0 1 0 1 1 0 0 1 0 1 1 1 1 1 0 1 1 0 
0 1 1 0 0 0 0 0 0 1 1 0 1 1 1 1 0 1 0 0 0 0 1 1 0 0 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 0 0 
0 0 0 0 1 0 1 1 1 0 1 0 1 1 0 0 0 0 0 0 1 0 0 0 1 1 1 1 1 1 0 1 0 0 0 0 0 0 1 0 1 1 0 
0 1 0 0 1 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 1 0 1 0 0 0 1 1 0 0 0 1 0 1 1 0 1 1 0 1 1 
0 1 0 0 0 0 1 1 1 1 0 1 0 0 1 1 1 0 0 0 1 0 1 0 0 0 1 1 0 0 0 1 1 1 0 1 1 1 0 0 1 0 0 
1 0 1 0 1 0 1 0 1 1 0 0 1 1 1 1 1 1 1 1 0 1 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 1 1 
0 0 1 0 0 1 1 1 1 1 0 1 1 0 0 0 0 1 1 1 0 0 1 0 0 1 0 1 1 0 0 1 1 1 0 1 1 1 1 1 0 0 0 
0 0 1 1 1 1 0 1 0 1 1 1 1 1 0 0 0 0 1 1 0 1 1 1 0 0 1 1 1 1 1 0 1 1 1 1 0 0 0 0 0 0 0 
1 1 1 1 1 1 0 0 0 0 0 1 0 1 1 1 1 0 0 1 0 0 1 0 0 0 1 0 0 0 1 1 0 1 0 1 0 1 0 0 0 1 0 
1 1 0 1 1 0 0 0 1 0 0 0 0 1 1 1 1 0 1 1 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 
1 0 0 0 0 0 1 1 0 0 1 0 0 1 0 0 1 0 1 0 1 1 0 0 1 0 0 0 0 1 1 0 0 0 0 0 1 1 0 1 0 1 0 
0 1 1 0 1 0 1 0 1 1 0 1 1 1 0 0 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 1 0 0 0 0 0 1 1 0 1 0 1 
0 1 1 0 0 0 0 0 0 1 0 0 1 1 1 0 1 1 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 
0 1 0 1 1 1 0 1 0 0 0 1 1 0 1 1 1 1 0 1 1 0 1 1 1 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 1 0 0 
1 1 0 0 0 1 0 1 1 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 1 0 1 1 1 1 1 0 1 1 0 1 1 1 1 0 1 0 1 
0 0 0 0 1 0 1 1 1 0 1 0 1 1 0 0 0 0 0 0 1 0 0 0 1 1 1 1 1 1 0 1 0 0 0 0 0 0 1 0 1 1 0 
0 1 0 0 1 1 1 1 0 1 1 0 0 1 0 0 0 0 0 1 0 0 1 0 1 0 1 1 1 0 0 1 1 0 0 0 1 0 0 1 1 1 1 
0 0 0 0 0 1 0 0 1 0 0 0 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 0 1 0 1 0 0 1 0 1 1 1 1 0 0 
1 1 0 0 1 1 1 1 0 0 0 1 0 1 0 1 1 0 0 1 0 1 1 1 1 1 0 0 0 1 0 1 0 0 1 0 0 0 0 1 0 0 0 
1 1 1 1 0 1 1 0 0 1 0 1 1 0 1 1 0 0 1 1 1 0 1 0 0 0 0 1 1 1 1 1 0 0 0 0 1 1 1 1 1 0 1 
0 0 1 1 0 1 0 0 1 1 0 0 0 1 0 1 1 0 1 0 0 1 0 1 1 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 1 1 0 
0 0 0 1 1 1 0 0 0 0 1 1 0 0 1 0 0 0 0 1 0 0 1 1 1 0 1 0 0 1 1 0 1 1 0 0 1 1 0 1 1 1 0 
0 1 1 0 0 1 1 0 1 1 0 1 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 1 0 1 0 0 0 0 0 1 0 1 1 0 0 1 1 
0 0 0 1 1 1 1 0 1 1 0 1 0 1 0 0 0 0 1 0 1 0 1 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 0 0 1 
1 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 0 0 1 0 0 1 1 0 1 0 1 1 1 0 1 0 1 0 1 0 1 0 1 1 
1 0 0 1 1 1 0 0 1 1 1 0 0 0 0 1 1 1 0 0 1 0 1 1 1 1 0 1 0 0 1 0 1 0 0 1 0 1 0 1 1 0 1 
1 1 0 1 1 1 1 0 1 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 1 0 1 0 1 1 1 0 0 0 1 0 
1 0 0 0 1 1 0 1 1 0 0 1 1 1 0 1 0 0 0 1 1 1 0 0 0 1 0 1 0 0 0 1 0 1 1 0 0 1 1 1 1 1 1 
1 1 0 0 0 1 1 1 1 0 0 0 1 1 0 0 1 1 0 0 1 0 0 0 1 1 1 0 1 1 0 0 1 0 0 0 1 1 0 0 1 0 0 
1 0 0 1 0 1 1 0 0 0 0 0 1 0 1 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 0 1 1 0

C/C++ code

void input()
{
    int row=42,col=43;
    ifstream fs("data.txt");
    
    char ch;
    for(int i=1;i<=row;++i)
        for(int j=1;j<=col;++j)
        {
            fs >>ch;
            a[i][j]=ch-'0';
        }

    fs.close();

    for(int i=1;i<=row;++i)
    {
        for(int j=1;j<=col;++j)
            cout <<a[i][j];
        cout <<endl;
    }
}

ifstream 用法不太会啊。假如文件为data.txt 放在D盘根目录下。要怎么写。谢谢告知～

ifstream fs("d:\\data.txt");

#include <fstream>

using namespace std;

C/C++ code

#include <iostream>
#include <algorithm>
void input()
{
    int row=42,col=43;
    ifstream fs("d:\\data.txt");
    
    char ch;
    for(int i=1;i<=row;++i)
        for(int j=1;j<=col;++j)
        {
            fs >>ch;
            a[i][j]=ch-'0';
        }
    
    fs.close();

    for(int i=1;i<=row;++i)
    {
        for(int j=1;j<=col;++j)
            cout <<a[i][j];
        cout <<endl;
    }
};
int main(){
    input();
   
    system("pause");
    return 0;

};

 
调试出来是error C2079: 'fs' uses undefined class 'basic_ifstream<char,struct std::char_traits<char> >'

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