文件操作和文件夹操作

水深无声 2021-09-16 16:22 559阅读 0赞

文件

![70][]

class Program
        {
            static void Main(string[] args)
            {
                //FileInfo fileInfo = new FileInfo("TextFile1.txt"); //相对路径，即把文件放在bin\debug下面
                FileInfo fileInfo = new FileInfo(@"D:\Desktop\keshan\创建file和文件夹\创建file和文件夹\bin\Debug\TextFile1.txt");//绝对路径，即带有盘符的路径
    
                Console.WriteLine(fileInfo.Exists);//判断该文件是否存在，若存在，返回true；否则返回false
                Console.WriteLine(fileInfo.Name);//文件名.后缀
                Console.WriteLine(fileInfo.Directory);//输出：D:\Desktop\keshan\创建file和文件夹\创建file和文件夹\bin\Debug
                Console.WriteLine(fileInfo.Length);//输出8。一个字母长度为1，一个汉字长度为2
                Console.WriteLine(fileInfo.IsReadOnly);
    
                fileInfo.CopyTo("lijiang.txt");//将TextFile1.txt复制为lijiang.txt
    
                FileInfo fileInfo2 = new FileInfo("newfile.txt");
                if(!fileInfo2.Exists)
                {
                    fileInfo2.Create();//新建名为newfile.txt的文件
                }
                fileInfo2.MoveTo("newfile2.txt");//将newfile.txt重命名为newfile2
    
                Console.ReadKey();
            }
        }

![70 1][] ![70 2][]

![70 3][]

文件夹

class Program
        {
            static void Main(string[] args)
            {
                DirectoryInfo dirInfo = new DirectoryInfo(@"D:\Desktop\keshan\创建file和文件夹\创建file和文件夹\bin\Debug");
                Console.WriteLine(dirInfo.Exists);
                Console.WriteLine(dirInfo.Name);
                Console.WriteLine(dirInfo.Parent);
                Console.WriteLine(dirInfo.Root);
                Console.WriteLine(dirInfo.CreationTime);
                dirInfo.CreateSubdirectory("李疆lalala");
    
                DirectoryInfo a = new DirectoryInfo("ad");
                if(a.Exists ==false)
                {
                    a.Create();
                }
                a.Delete();
                Console.ReadKey();
            }
        }

![70 4][]

![70 5][]

[70]: /images/20210725/bfad418e57ce41f4a0bf8f0b50404c5a.png
[70 1]: https://img-blog.csdn.net/20181020145236805?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70
[70 2]: /images/20210725/de019015678b4bcdb170b611a17503be.png
[70 3]: /images/20210725/9548864cd7924723b58806dc55ce603a.png
[70 4]: /images/20210725/7a1892ee851b4c098f1c44a6d99b09eb.png
[70 5]: /images/20210725/09e6dacaf9a949d4bda2896f25cb075e.png