任務<T>和任務在Func委託

Question

嘿傢伙我想清理我的一些代碼。我有重載的方法。我能不能簡單地使用這段代碼並在另一個方法中調用一個方法？不能弄清楚如何做到這一點。

private async Task<T> DecorateWithWaitScreen<T>(Func<Task<T>> action) 
{ 
    SplashScreenManager.ShowForm(this, typeof(WaitForm), true, true, false); 
    try 
    { 
     return await action(); 

    } 
    catch (Exception e) 
    { 
     MessageBox.Show(e.Message); 
     throw; 
    } 
    finally 
    { 
     SplashScreenManager.CloseForm(false); 
    } 
} 

private async Task DecorateWithWaitScreen(Func<Task> action) 
{ 
    SplashScreenManager.ShowForm(this, typeof(WaitForm), true, true, false); 
    try 
    { 
     await action(); 
    } 
    catch (Exception e) 
    { 
     MessageBox.Show(e.Message); 
     throw; 
    } 
    finally 
    { 
     SplashScreenManager.CloseForm(false); 
    } 
} 

Answer 1

如何：

private Task DecorateWithWaitScreen(Func<Task> action) 
    => DecorateWithWaitScreen<int>(async() => { await action(); return 0; });