_04媒体文件的读取

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _04媒体文件的读取
{
    class Program
    {
        //***************************第一种读取的方式：********************
        static void Main(string[] args)
        {
            string path = @"C:\Users\Administrator\Desktop\震撼宇宙.mp4";
            string newpath = @"C:\Users\Administrator\Desktop\震撼宇宙(1).mp4";
            IsMove(path, newpath);
        }
        public static void IsMove(string path,string newpath)
        {
            using (FileStream movRead=new FileStream(path,FileMode.OpenOrCreate,FileAccess.Read))
            {
                using (FileStream moveWrite=new FileStream(newpath,FileMode.OpenOrCreate,FileAccess.Write))
                {
                    //读的时候要先创造个容器 来一次读多少
                    byte[] bt = new byte[1024 * 1024 * 5];
                    while (true)//一次不能读完，得几次读取，知道读完，所以用while
                    {
                       int num= movRead.Read(bt, 0, bt.Length);//一次不呢读完，就返回每次实际读取的长度
                        if (num==0)
                        {
                            break;
                        }
                        moveWrite.Write(bt, 0, num);//读取多少就写如多少
                    }
                }
            }
        }
    }
}