C++文件写入

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    char data[100];
    ofstream outfile;
   // outfile.open("test.txt",ios::out|ios::in);文件打开模式可以省略，ofstream就是写对象
   //test.txt如果不存在会自动创建 
    outfile.open("test.txt"); 
    outfile << "hello c++";
    cout << "writing something" << endl;
    cin.getline(data,100);
    outfile << data << endl;
    cin >> data;
    cin.ignore();//用来忽略指定字符 
    outfile << data << endl;
    outfile.close();
    return 0; 
}