c++写入csv文件

#include
using namespace std;
void write(string filename,vector<vector<string> > &data)
{
    //filename是待写入的文件名，data是保存待写文件的数据，保证filename一定存在
    ofstream outFile;
    outFile.open(filename,ios::out); //打开这个文件
    for(auto d : data) //遍历待写入的数据
    {
        for(int i = 0;i<d.size();i++)
        {
            if(i == d.size()-1) outFile<<d[i]<<endl;
            else outFile<<d[i]<<",";
        }
    }
    cout<<"OK"<<endl;


}
int main()
{
    string filename = "D:/test.csv";
    vector<vector<string> >data = {{"name","age","sid"},{"张三","20","1213153"},{"李四","15","11353"}};
    write(filename,data);
    return 0;
}

运行结果如下：