您正在開發(fā)一個(gè)自定義事件處理程序,自動打印所有打開的文件。事件處理程序有助于指定打印的份數(shù)。您需要開發(fā)一個(gè)自定義事件的參數(shù)類作為參數(shù)傳遞給事件處理程序。您應(yīng)該使用哪個(gè)代碼段?()
A.A B.B C.C D.D
您需要確定滿足下列條件的類型:始終為數(shù)字。不大于65,535。 您應(yīng)選擇哪種類型?()
You work as aplication developer at Cer-Tech.com. You have recently created an aplication that includes the code shown below.You now need to invoke the GetFileContents method asynchronously.You have to ensure that the code you use to invoke the GetFileContents method will continue to process other user instructions, and displays the results as soon as the GetFileContents method finishes processing. What should you do?()