C#编程-110:文件操作File静态类
        【摘要】   
   using System;  using System.Collections.Generic;  using System.Linq;  using System.Text;  using System.IO;  namespace IOTest {     cla...
    
    
    
    - using System;
 - using System.Collections.Generic;
 - using System.Linq;
 - using System.Text;
 - using System.IO;
 - namespace IOTest
 - {
 - class Program
 - {
 - static void Main(string[] args)
 - {
 - //判断文件是否存在
 - //file是静态类
 - string path = @"C:\Users\pengshiyu\Desktop\新建文本文档.txt";
 - if (File.Exists(path)) Console.WriteLine("file \""+path+"\" is exists");
 - else Console.WriteLine("file \""+path+"\" is not exists");
 - //创建文件,注意:需要把创建的文件流关闭
 - //方法一:try catch语句
 - //方法二:先判断不存在,再创建
 - string path1 = @"C:\Users\pengshiyu\Desktop\";
 - if (!File.Exists(path1 + "newFile.txt"))
 - {
 - FileStream filestream = File.Create(path1 + "newFile.txt");
 - filestream.Close();
 - Console.WriteLine("文件创建成功!");
 - }
 - else
 - Console.WriteLine("文件已经存在!");
 - //打开文件
 - //FileMode有六种枚举
 - string path2 = @"C:\Users\pengshiyu\Desktop\test.txt";
 - try
 - {
 - FileStream filestream = File.Open(path2,FileMode.Truncate);
 - byte[] writebyte = { (byte)'p', (byte)'s', (byte)'y', (byte)',', (byte)'t', (byte)'e', (byte)'s', (byte)'t' };
 - filestream.Write(writebyte,0,writebyte.Length);
 - filestream.Close();
 - Console.WriteLine("文件写入成功!");
 - }
 - catch (Exception ex)
 - {
 - Console.WriteLine(ex.Message);
 - }
 - //文件复制
 - string pathSource = @"C:\Users\pengshiyu\Desktop\source\test.txt";
 - string pathDestination = @"C:\Users\pengshiyu\Desktop\destination\test.txt";
 - if (File.Exists(pathSource))
 - {
 - try
 - {
 - if (!File.Exists(pathDestination))
 - {
 - Console.WriteLine("请选择复制(1)还是移动(2):");
 - string choice = Console.ReadLine();
 - if (choice == "1")
 - {
 - //文件复制
 - File.Copy(pathSource, pathDestination, false);
 - Console.WriteLine("文件拷贝成功!");
 - Console.WriteLine("是否删除源文件?删除:1,不删除:2");
 - string delChoice = Console.ReadLine();
 - if (delChoice == "1")
 - {
 - //文件删除
 - File.Delete(pathSource);
 - Console.WriteLine("源文件删除成功!");
 - }
 - else if (delChoice == "2")
 - {
 - Console.WriteLine("不删除!");
 - }
 - else
 - {
 - Console.WriteLine("用户输入有误!");
 - }
 - }
 - else if (choice == "2")
 - {
 - //文件移动
 - File.Move(pathSource, pathDestination);
 - Console.WriteLine("文件移动成功!");
 - }
 - else
 - {
 - Console.WriteLine("文件存在,是否覆盖?是:1,否:2");
 - string choicecover = Console.ReadLine();
 - if (choicecover == "1")
 - {
 - File.Copy(pathSource, pathDestination, true);
 - Console.WriteLine("文件拷贝成功,覆盖完成!");
 - }
 - else if (choicecover == "2")
 - {
 - Console.WriteLine("文件拷贝失败,文件已存在!");
 - }
 - else
 - {
 - Console.WriteLine("输入有误!");
 - }
 - }
 - }
 - }
 - catch (Exception ex)
 - {
 - Console.WriteLine(ex.Message);
 - }
 - }
 - else
 - {
 - Console.WriteLine("源文件不存在");
 - }
 - Console.ReadKey();
 - }
 - }
 - }
 
文章来源: pengshiyu.blog.csdn.net,作者:彭世瑜,版权归原作者所有,如需转载,请联系作者。
原文链接:pengshiyu.blog.csdn.net/article/details/81049236
        【版权声明】本文为华为云社区用户转载文章,如果您发现本社区中有涉嫌抄袭的内容,欢迎发送邮件进行举报,并提供相关证据,一经查实,本社区将立刻删除涉嫌侵权内容,举报邮箱:
            cloudbbs@huaweicloud.com
        
        
        
        
        
        
        - 点赞
 - 收藏
 - 关注作者
 
            
           
评论(0)