从C#的当前用户appdata文件夹中的文件读取

Question

我正在尝试从C#中当前用户的appdata文件夹中的文件中读取,但我还在学习,所以我有这个:

int counter = 0;
string line;

// Read the file and display it line by line.
System.IO.StreamReader file = new System.IO.StreamReader("c:\\test.txt");
while ((line = file.ReadLine()) != null)
{
    Console.WriteLine(line);
    counter++;
}

file.Close();

// Suspend the screen.
Console.ReadLine();

但我不知道输入什么以确保它始终是当前用户的文件夹.

Answer 1

我可能会误解你的问题,但如果你想获得当前用户appdata文件夹,你可以使用:

string appDataFolder = Environment.GetFolderPath(
    Environment.SpecialFolder.ApplicationData);

所以你的代码可能变成:

string appDataFolder = Environment.GetFolderPath(
    Environment.SpecialFolder.ApplicationData
);
string filePath = Path.Combine(appDataFolder, "test.txt");
using (var reader = new StreamReader(filePath))
{
    string line;
    while ((line = reader.ReadLine()) != null)
    {
        Console.WriteLine(line);
    }
}

甚至更短:

string appDataFolder = Environment.GetFolderPath(
    Environment.SpecialFolder.ApplicationData
);
string filePath = Path.Combine(appDataFolder, "test.txt");
File.ReadAllLines(filePath).ToList().ForEach(Console.WriteLine);