將形如 1，2，3
4，5，6
7，8，9
的csv檔案資料放入二維陣列中。

#include <iostream>  
#include <string>  
#include <vector>  
#include <fstream>  
#include <sstream>  

using namespace std;  


int main()  
{  
    // 寫檔案  
    //ofstream outFile;  
    //outFile.open("data.csv", ios::out); // 開啟模式可省略  
 

    //outFile << "name" << ',' << "age" << ',' << "hobby" << endl;  
    //outFile << "Mike" << ',' << 18 << ',' << "paiting" << endl;  
    //outFile << "Tom" << ',' << 25 << ',' << "football" << endl;  
 

    //outFile << "Jack" << ',' << 21 << ',' << "music" << endl;  
    //outFile.close();  

    // 讀檔案  
    ifstream inFile("E://1.txt", ios::in);  
    string lineStr;  
    vector<vector<string>> strArray;  
    int array[3][3];
    int i,j;
    i=0;
    char
 
* end;
    if(inFile.fail())
        cout<<"讀取檔案失敗"<<endl;
    while (getline(inFile, lineStr))  
    {  
        j=0;
        // 列印整行字串  
        cout << lineStr << endl;  
        // 存成二維表結構  
        stringstream ss(lineStr);  
        string str;  
        vector<string> lineArray;  
        // 按照逗號分隔  
        while (getline(ss, str, ','))  
        {
            array[i][j]=static_cast<int>(strtol(str.c_str(),&end,10));              //string -> int
            j++;
        }
        i++;     
   //     strArray.push_back(lineArray);  
    }  
      for(int i=0;i<3;i++)
      {
          for(int j=0;j<3;j++)
              cout<<array[i][j];
          cout<<endl;
      }
    getchar(); 
    return 0;  
}