2013微软认证考试练习题及答案（3）[1]

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第 11 题 你写了如下一段代码 public delegate void FaxDocs(object sender, FaxArgs args); 你需要创建一个调用FaxDocs的事件，你应该使用那个代码段？ A. pulic static event FaxDocs Fax; B. public static event Fax FaxDocs; C. public class FaxArgs : EventArgs { private string coverPageInfo; public FaxArgs(string coverInfo) { this.coverPageInfo = coverPageInfo; } public string CoverPageInformation { get {return this.coverPageInfo;} }} D. public class FaxArgs : EventArgs { private string coverPageInfo; public string CoverPageInformation { get {return this.coverPageInfo;} }} 答案: A 第 12 题 你写如下的代码段去调用Win32 Application Programming Interface (API)： string personName = "N?el"; string msg = "Welcome" + personName + "to club"!"; bool rc =User32API.MessageBox(0, msg, personName, 0); 为了实现上面的调用，你需要定义一个方法原型，请问，你会采用那个代码段进行定义？ A. [DllImport("user32", CharSet = CharSet.Ansi)] public static extern bool MessageBox(int hWnd,String text,String caption,uint type);} B. [DllImport("user32", EntryPoint = "MessageBoxA", CharSet = CharSet.Ansi)] Public static extern bool MessageBox(int hWnd, [MarshalAs(UnmanagedType.LPWStr)]String text, [MarshalAs(UnmanagedType.LPWStr)]String caption, uint type);} C. [DllImport("user32", CharSet = CharSet.Unicode)] public static extern bool MessageBox(int hWnd,String text, String caption,uint type);} D. [DllImport("user32", EntryPoint = "MessageBoxA", CharSet = CharSet.Unicode)]public static extern bool MessageBox(int hWnd, [MarshalAs(UnmanagedType.LPWStr)]String text, [MarshalAs(UnmanagedType.LPWStr)]String caption,uint type);} 答案:C

第 13 题 你需要以字符串的形式返回isolated storage文件内容。已知，文件名称为Settings.dat并且在机 器范围内唯一。你应该使用下面那个代码段？ A. IsolatedStorageFileStream isoStream;isoStream = new IsolatedStorageFileStream( "Settings.dat", FileMode.Open); string result = new StreamReader(isoStream).ReadToEnd(); B. IsolatedStorageFile isoFile;isoFile = IsolatedStorage微软认证(MCSE)