问题
单项选择题
要求当鼠标在图片框Pl中移动时，立即在图片框中显示鼠标的位置坐标。下面能正确实现上述功能的事件过程是______。
A) Private Sub Form_MouseMove(Button As Integer,Shift As Integer,X As Single,Y As Single)
P1.Print X,Y
End Sub
B) Private Sub P1_MouseMove(Button As Integer,Sluft As Integer,X As Single,Y As Single)
P1.PrintX,Y
End Sub
C) Private Sub P1_MouseMove(Button As Integer,Shift As Integer,X As Single,Y As Single)
Print X,Y
End Sub
D) Private Sub P1_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single)
Picture，Print X.Y
End Sub
答案
参考答案：B
解析： 题目要求鼠标在图片框中移动，所以触发的是图片框的MouseMove事件，选项A) 中写的是窗体的MouseMove事件，所以是错误的；题目要求在图片框中显示鼠标移动的位置，选项C) 是在窗体中显示，所以是错误的；鼠标移动时触发的是MouseMove事件，所以选项D) 是错误的；只有选项B) 是正确的。