public static void Run(string filePath)
{
AsyncMethod file = new AsyncMethod(filePath);
Task t = file.ReadFile();
t.Wait();
}
public static void Run()
{
string f = "file1.txt";
BeginEndMethod.Run(f);
AsyncMethod.Run(f);
Console.WriteLine("\n\n\n");
Console.WriteLine("读文件完成。");
}