简单明了的C++文件操作之写文件

#include<io.h>
#include<iostream>
#include<fstream> //文件操作必须的头文件
using namespace std;


int main() {
    ofstream outfile1;
    //outfile1.open("D:\\data.txt",ios::app);//以追加方式打开
    outfile1.open("D:\\data.txt");           //重写方式打开
    outfile1 << "hello"<< endl;              //endl是换行
    outfile1.flush();                        //将缓冲区的输出
    outfile1.close();                        //关闭流
    return 0;
}