下面程序段的输出结果是( )。 class Base { int i; Base { add(1); } void add(int v) { i+=v: } void print { System.out.println(i); } } class Extension extends Base { Extension { add(2); } void ad
Y处画一个点): Dim cmdmave As Boolean Private Sub Form_MouseDown(Button As Integer,X As Single,Y As Single) If cmdmave Then Forml.PSet(X,Y) End lf End Sub Private Sub Form_MouseUp(Button As Integer,j