Question

使用File.Copy复制文件后，当前目录列表不包含复制的文件：

string path = Directory.GetCurrentDirectory();
string[] files = Directory.GetFiles(path);
Console.WriteLine("Enter the name of the file to copy");
source = Console.ReadLine();
Console.WriteLine("Enter a name for the new file:");
string target = Console.ReadLine();
File.Copy(source, target);
Console.WriteLine("\n\nNew listing:");
foreach (var file in files)
       Console.WriteLine(file);

Answer 1

files将不会更新，直到您再次致电files = Directory.GetFiles(path);。

这是一个从对GetFiles的调用中填充的数组，而不是目录本身的链接。

Answer 2

将代码更改为此：

    string path = Directory.GetCurrentDirectory();
string[] files = Directory.GetFiles(path);
Console.WriteLine("Enter the name of the file to copy");
source = Console.ReadLine();
Console.WriteLine("Enter a name for the new file:");
string target = Console.ReadLine();
File.Copy(source, target);
Console.WriteLine("\n\nNew listing:");

files = Directory.GetFiles(path); //this added

foreach (var file in files)
       Console.WriteLine(file);

列出当前目录不包含复制的文件

2 个答案: