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下面是 “员工请假登记” 这一项的源代码：
Option Explicit
"窗口与消息API声明
Private Declare Function SetTimer Lib "user32.dll" (ByVal hwnd As Long, _
ByVal nIDEvent As Long, ByVal uElapse As Long, _
ByVal lpTimerFunc As Long) As Long
Private Declare Function KillTimer Lib "user32.dll" (ByVal hwnd As Long, _
ByVal nIDEvent As Long) As Long
Public Declare Function FindWindow Li
