单项选择题

当发生Form_ Click 事件后,下面这段程序代码的执行结果为在窗体中输出______ 。 Option Explicit Private Sub Form Click () Dim num As String * 1, n As Integer Open "C:\ Check. txt" For Random As #10 For n = 1 To 6 num = Chr(n + 64) Put %10, n, num Next n Seek #10, 3: Get #10, , num Print Loc(10); Seek(10) End Sub

A.3 4
B.4 5
C.5 3
D.3 3