为什么 _DateDiff() return 0？

Question

我的 AutoIt 脚本应该通过说 The process will be complete at 3:18:24 PM 来预测进程何时完成。但这并没有发生。它采用这些输入值：

开始时间
起始百分比
当前时间
当前百分比

它显示：

"The extraction will be complete at 0".

我将问题隔离到 _DateDiff()。我认为第一个参数是 n 以分钟为单位的差异。但是当我传递接下来的两个参数（日期值相隔六十分钟）时，它 returns 0 。这是代码：

GUICreate("Completion Time Predictor", 300, 300)
;Here I enter the starting time and percentage
GUICtrlCreateLabel("Enter the start time:", 10, 10, 270, 29)
$StartTime = GUICtrlCreateDate("", 10, 40, 270, 21, $DTS_TIMEFORMAT)
GUICtrlCreateLabel("Enter the start percentage:", 10, 70, 270, 29)
Local $StartPercent = GUICtrlCreateInput("", 10, 100, 270, 21)
;Here I enter the current time and percentage
GUICtrlCreateLabel("Enter the current time:", 10, 130, 270, 29)
$CurrentTime = GUICtrlCreateDate("", 10, 160, 270, 21, $DTS_TIMEFORMAT)
GUICtrlCreateLabel("Enter the current percentage:", 10, 190, 270, 29)
Local $CurrentPercent = GUICtrlCreateInput("", 10, 220, 270, 21)
Local $CTRL_a = GUICtrlCreateButton("Calculate", 10, 260, 280, 21)
GUISetState()
Local $msg
Do
    $msg = GUIGetMsg()
    Select
        Case $msg = $CTRL_a
            $PercentChange = GUICtrlRead($CurrentPercent) - GUICtrlRead($StartPercent)
            ;This seems to be where everything is going wrong
            $ChangePerMinute = $PercentChange / _DateDiff('n', GUICtrlRead($StartTime), GUICtrlRead($CurrentTime))
            $MinutesRemaining = (100 - GUICtrlRead($CurrentPercent)) / $ChangePerMinute
            $EndTime = _DateAdd('n', $MinutesRemaining, GUICtrlRead($CurrentTime))
            MsgBox($MB_OK, "Predicted Completion Time:", "The extraction will be complete at  " & $EndTime)
    EndSelect
Until $msg = $GUI_EVENT_CLOSE

Answer 1

我不知道你在做什么，但也许这可以帮助你找到问题

#include <Date.au3>
#include <DateTimeConstants.au3>
#include <GUIConstantsEx.au3>
#include <MsgBoxConstants.au3>
GUICreate("Completion Time Predictor", 300, 300)
;Here I enter the starting time and percentage
GUICtrlCreateLabel("Enter the start time:", 10, 10, 270, 29)
$StartTime = GUICtrlCreateDate("", 10, 40, 270, 21, $DTS_TIMEFORMAT)
GUICtrlCreateLabel("Enter the start percentage:", 10, 70, 270, 29)
Local $StartPercent = GUICtrlCreateInput("0", 10, 100, 270, 21)
;Here I enter the current time and percentage
GUICtrlCreateLabel("Enter the current time:", 10, 130, 270, 29)
$CurrentTime = GUICtrlCreateDate("", 10, 160, 270, 21, $DTS_TIMEFORMAT)
GUICtrlSetData(-1, _NowCalcDate() & ' ' & @HOUR + 1 & ":" & @MIN & ':' & @SEC)
GUICtrlCreateLabel("Enter the current percentage:", 10, 190, 270, 29)
Local $CurrentPercent = GUICtrlCreateInput("10", 10, 220, 270, 21)
Local $CTRL_a = GUICtrlCreateButton("Calculate", 10, 260, 280, 21)
GUISetState()
Local $msg

Do
    $msg = GUIGetMsg()
    Select
        Case $msg = $CTRL_a
            ConsoleWrite(_NowCalcDate() & ' ' & GUICtrlRead($StartTime) & " " & _NowCalcDate() & ' ' & GUICtrlRead($CurrentTime) & @CRLF)
            $PercentChange = GUICtrlRead($CurrentPercent) - GUICtrlRead($StartPercent)
            ConsoleWrite("% Change: " & $PercentChange & @CRLF)
            ;This seems to be where everything is going wrong
            $diff_min = _DateDiff('n', _NowCalcDate() & ' ' & GUICtrlRead($StartTime), _NowCalcDate() & ' ' & GUICtrlRead($CurrentTime))
            ConsoleWrite("Diff in Min: " & $diff_min & @CRLF)
            $ChangePerMinute = $PercentChange / $diff_min
            ConsoleWrite("Change / min : " & $ChangePerMinute & @CRLF)
            $MinutesRemaining = (100 - GUICtrlRead($CurrentPercent)) / $ChangePerMinute
            ConsoleWrite("MinutesRemaining : " & " " & $MinutesRemaining & @CRLF)
            $EndTime = _DateAdd('n', $MinutesRemaining, _NowCalcDate() & ' ' & GUICtrlRead($CurrentTime))
            MsgBox($MB_OK, "Predicted Completion Time:", "The extraction will be complete at  " & $EndTime)
    EndSelect
Until $msg = $GUI_EVENT_CLOSE

为什么 _DateDiff() return 0？

Why does _DateDiff() return 0?

date

time

autoit

time-estimation