using System; using System.Threading; using System.Threading.Tasks; namespace AsyncAwaitDemo { class Program { static void Main(string[] args) { Console.WriteLine($"a1,主線程開始,線程Id:{Thread.CurrentThread.ManagedThreadId}"); TestAsync1(); Console.WriteLine($"a2,主線程開始,線程Id:{Thread.CurrentThread.ManagedThreadId}"); Console.ReadKey(); } public static async Task TestAsync1() { Console.WriteLine($"b1,異步方法開始,線程Id:{Thread.CurrentThread.ManagedThreadId}"); await TestAsync2(); Console.WriteLine($"b2,異步方法開始,線程Id:{Thread.CurrentThread.ManagedThreadId}"); } public static async Task TestAsync2() { Console.WriteLine($"c1,異步方法開始,線程Id:{Thread.CurrentThread.ManagedThreadId}"); await Task.Run(()=> { Thread.Sleep(1000); Console.WriteLine($"c2,異步方法執行,線程Id:{Thread.CurrentThread.ManagedThreadId}"); }); Console.WriteLine($"c3,異步方法結束,線程Id:{Thread.CurrentThread.ManagedThreadId}"); } } }
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