关于如何“中止”一个循环？的一些个人看法
大家都知道autoit是单线程,不管是消息模式还是事件模式,同一时间它只能进行一项操作.当脚本执行一个包含长时间循环的函数时,此时按其它按钮是不会响应的.详见http://www.autoitx.com/forum.php?mod=viewthread&tid=45931&highlight=%D6%D0%D6%B9有人已提出了思路,加入一个中止的flag,在循环体中检测这个flag,当满足条件,即退出循环,那么,问题来了,如何正确及时的设置这个flag,成为问题所在.
经过测试,注册系统消息wm_command是可行的#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <ProgressConstants.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>
$flag = False
$Form1 = GUICreate("Form1", 487, 98)
$Progress1 = GUICtrlCreateProgress(8, 72, 465, 17)
GUICtrlSetData(-1, 0)
$Button1 = GUICtrlCreateButton("开始", 48, 16, 105, 33)
$Button2 = GUICtrlCreateButton("中止", 168, 16, 105, 33)
GUICtrlSetState(-1, $gui_disable)
$Button3 = GUICtrlCreateButton("退出", 288, 16, 97, 33)
GUISetState(@SW_SHOW)
GUIRegisterMsg($WM_COMMAND, "WM_COMMAND")
While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
Exit
Case $Button1
gogo()
Case $Button2
$flag = True
Case $Button3
Exit
EndSwitch
WEnd
Func gogo()
$flag = False
GUICtrlSetState($Button1, $gui_disable)
GUICtrlSetState($Button2, $gui_enable)
GUICtrlSetState($Button3, $gui_disable)
GUICtrlSetData($Progress1, 0)
Local $i, $j = 30
For $i = 1 To $j
ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $flag = ' & $flag & @crlf & '>Error code: ' & @error & @crlf) ;### Debug Console
If $flag Then
GUICtrlSetState($Button1, $gui_enable)
GUICtrlSetState($Button2, $gui_disable)
GUICtrlSetState($Button3, $gui_enable)
Return SetError(1, 0, 0)
EndIf
GUICtrlSetData($Progress1, $i * 100 / $j)
Sleep(200)
; 这里要加什么命令才能中止循环, 并得到当前的 $i
; MsgBox(0,"操作被中止","操作被中止, 最后的 $i 是：" & $i)
Next
GUICtrlSetState($Button1, $gui_enable)
GUICtrlSetState($Button2, $gui_disable)
GUICtrlSetState($Button3, $gui_enable)
EndFunc ;==>gogo
Func WM_COMMAND($hWnd, $iMsg, $iwParam, $ilParam)
Local $wID = _WinAPI_LoWord($iwParam)
Local $iIDFrom = BitAND($iwParam, 0xFFFF)
Local $iCode = BitShift($iwParam, 16)
Switch $wID
Case $Button2
$flag = True
EndSwitch
EndFunc ;==>WM_COMMAND
回复 1# tubaba
试试:
47 行 If $flag = True Then MsgBox(0,"操作被中止","操作被中止, 最后的 $i 是：" & $i) 本帖最后由 tubaba 于 2014-12-30 14:24 编辑
回复 2# 131738
好吧,被你吓到了,重贴,只是提供思路,试试下面的#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <ProgressConstants.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>
$flag = False
$Form1 = GUICreate("Form1", 487, 98)
$Progress1 = GUICtrlCreateProgress(8, 72, 465, 17)
GUICtrlSetData(-1, 0)
$Button1 = GUICtrlCreateButton("开始", 48, 16, 105, 33)
$Button2 = GUICtrlCreateButton("中止", 168, 16, 105, 33)
GUICtrlSetState(-1, $gui_disable)
$Button3 = GUICtrlCreateButton("退出", 288, 16, 97, 33)
GUISetState(@SW_SHOW)
GUIRegisterMsg($WM_COMMAND, "WM_COMMAND")
While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
Exit
Case $Button1
gogo()
Case $Button2
$flag = True
Case $Button3
Exit
EndSwitch
WEnd
Func gogo()
$flag = False
GUICtrlSetState($Button1, $gui_disable)
GUICtrlSetState($Button2, $gui_enable)
GUICtrlSetState($Button3, $gui_disable)
GUICtrlSetData($Progress1, 0)
Local $i, $j = 30
For $i = 1 To $j
If $flag Then
GUICtrlSetState($Button1, $gui_enable)
GUICtrlSetState($Button2, $gui_disable)
GUICtrlSetState($Button3, $gui_enable)
MsgBox(0,"操作被中止","操作被中止, 最后的 $i 是：" & $i)
Return SetError(1, 0, $i)
EndIf
GUICtrlSetData($Progress1, $i * 100 / $j)
Sleep(200)
; 这里要加什么命令才能中止循环, 并得到当前的 $i
; MsgBox(0,"操作被中止","操作被中止, 最后的 $i 是：" & $i)
Next
GUICtrlSetState($Button1, $gui_enable)
GUICtrlSetState($Button2, $gui_disable)
GUICtrlSetState($Button3, $gui_enable)
EndFunc ;==>gogo
Func WM_COMMAND($hWnd, $iMsg, $iwParam, $ilParam)
Local $wID = _WinAPI_LoWord($iwParam)
Local $iIDFrom = BitAND($iwParam, 0xFFFF)
Local $iCode = BitShift($iwParam, 16)
Switch $wID
Case $Button2
$flag = True
EndSwitch
EndFunc ;==>WM_COMMAND 本帖最后由 131738 于 2014-12-30 15:00 编辑
回复 3# tubaba
不懂................你什么意思................算我没说.................
页:
[1]