#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <Constants.au3>
$hGUI = GUICreate("New Window", 468, 324, -1, -1)
$Button1 = GUICtrlCreateButton("Button", 29, 43, 80, 29)
$Button2 = GUICtrlCreateButton("Button", 126, 41, 73, 35)
$Button3 = GUICtrlCreateButton("Button", 223, 42, 91, 42)
$Button4 = GUICtrlCreateButton("Button", 347, 44, 89, 30)
GUISetState()
While 15
$hMsg = GUIGetMsg()
Switch $hMsg
Case -3
Exit
Case $Button1
_xfmd()
Case $Button2
_xfmc()
Case $Button3
_xfme()
Case $Button4
_xfmf()
EndSwitch
WEnd
Func _xfmd()
Dim $t51
$t51 = GUICtrlCreateLabel(" das2r43rsdf23rsdfsdfsdxvxcv", 16, 110, 550, 0)
EndFunc ;==>_xfmd
Func _xfmc()
Dim $t51
$t51 = GUICtrlCreateLabel(" DLKJSDAKJLFASDKJLKLJDFSAKLJFDSA", 16, 110, 550, 0)
$t51 = GUICtrlCreateLabel("hahhahhahh:", 16, 190, 90, 17)
GUICtrlSetFont(-1, 9, 400, 4, "")
GUICtrlSetColor(-1, 0x0000FF)
GUICtrlSetCursor(-1, 0)
EndFunc ;==>_xfmc
Func _xfme()
Dim $t51
$t51 = GUICtrlCreateLabel(" 我是大程序呵哥哈哈全", 16, 110, 550, 0)
$t51 = GUICtrlCreateLabel("hahhahhahh:", 16, 150, 90, 17)
EndFunc ;==>_xfmd
Func _xfmf()
Dim $t51
$t51 = GUICtrlCreateLabel(" 我小程序哈全", 16, 110, 550, 0)
EndFunc ;==>_xfmd
这样做的话,变成点击按钮2或3,4按钮时,原来1按钮的内容还在,如何实现在点击其它按钮时清空原来显示的内容呢》?