执行Dim X,Y AS Integer 语句后则X,Y的默认值均为0
举一反三
- 下列代码执行后，窗体上显示（ ）。 Dim x As Integer, y As Integer x = 50: y = 30 If x > y Then x = x - y Else y = y x If x < y Then x = x 20 Form1.Print x, y
- 执行下列语句后，变量X的值是： Dim X As Integer X = 0 X = 13 / 3
- Sub s1(ByVal x As Integer, ByVal y As Integer) Dim t As Integer t = x: x = y: y = t End Sub Sub s2(x As Integer, y As Integer) Dim t As Integer t = x: x = y: y = t End Sub 则以下说法中正确的是( )。
- 设x、y、t均为int型变量,则执行语句:x=y=3;t=++x||++y;后,y的值为
- 执行下列程序段后，变量y的值为（ ）。 Dim x As Integer,y As Integer x = 7 y = 3 If x >= 10 Then y = x - y ElseIf x>= 7 Then y = x + y Else y = x End If A: 21 B: 10 C: 4 D: 3