[分享]关于查找与替换效率研讨

守柔

关于查找与替换效率研讨

查找与替换是Word非常显著的一个功能特点，使用Word的前台功能，其效率很高，而使用VBA时，相对较慢。本文就先前论坛常用方法进行研讨。

1        测试文档：

全文52536个文字，41页，为RAND()虚拟函数所得，通篇文字均为那只敏捷的棕毛狐狸跃过那只懒狗。文档中共包括2985个"敏捷".

2        测试电脑：

DELL INSPIRON 700m，1.7GCPU，512M内存，WINXP+OFFICE2003_SP2.

代码平均运行3次。

Zdr1L05B.rar (11.59 KB, 下载次数: 234)

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[分享]关于查找与替换效率研讨

[此贴子已经被作者于2008-1-28 7:00:20编辑过]

守柔

1.1    Selection对象的Find对象

'* ＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋

'* Created By SHOUROU@ExcelHome 2008-1-28 6:25:33

'仅测试于System: Windows NT Word: 11.0 Language: 2052

'№ 0316^The Code CopyIn [ThisDocument-ThisDocument]^'

'* －－－－－－－－－－－－－－－－－－－－－－－－－－－－－

Sub Get_Finds1()

' 用时:3.826172 , 3.826172,3.59375

    Dim N As Long, StartTime As Single, EndTime As Single

    StartTime = VBA.Timer

    Selection.HomeKey wdStory

    Do

        With Selection.Find

            .Text = "敏捷"

            .Wrap = wdFindStop

            .Forward = True

            If .Execute = False Then Exit Do

            N = N + 1

        End With

    Loop

    EndTime = VBA.Timer

    Debug.Print EndTime - StartTime

    MsgBox "Word共用时" & EndTime - StartTime & "找到了" & N & "项目!", vbInformation

End Sub

'----------------------

守柔

1.1    Range对象的Find对象

略，参考REPLACE对象

1.2    正则表达式regexp对象

'№ 0317^The Code CopyIn [ThisDocument-ThisDocument]^'

'* －－－－－－－－－－－－－－－－－－－－－－－－－－－－－

Sub Get_Finds2()

'用时0.05078125,0.0507125,0.04882813

'请在VBE中引用 Microsoft VBScript Regular Expressions 5.5

'本程序适用于取得匹配查找内容的数量

    Dim myRegEx As New VBScript_RegExp_55.RegExp    '定义一个新的正则表达式对象

    Dim Matches As Object, strSource As String, strFindText As String

    Dim StartTime As Single, EndTime As Single, N As Long

    StartTime = VBA.Timer

    strSource = ActiveDocument.Content.Text

    strFindText = "敏捷"

[此贴子已经被作者于2008-1-28 6:57:29编辑过]

守柔

    myRegEx.IgnoreCase = True    ' 不区分大小写

    myRegEx.Global = True    ' 搜索全部

    myRegEx.Pattern = strFindText    '设置模式表达式

    Set Matches = myRegEx.Execute(strSource)

    N = Matches.Count    '返回匹配查找内容的数量

    EndTime = VBA.Timer

    Debug.Print EndTime - StartTime

    MsgBox "Word共用时" & EndTime - StartTime & "找到了" & N & "项目!", vbInformation

End Sub

'----------------------

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使用正则表达式对象RegExp取得2985个查找内容（项目）的平均用时0.050107293s，使用Selection对象的Find对象的平均用时为3.748698s，使用Range对象的Find对象更慢一些。前者是后者的74倍，比Word前台的查找还快。

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守柔

4 查找并替换次数（非全部替换）
4.1 Selection对象的Find对象
'* ＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋
'* Created By SHOUROU@ExcelHome 2008-1-28 6:35:07
'仅测试于System: Windows NT Word: 11.0 Language: 2052
'№ 0318^The Code CopyIn [ThisDocument-ThisDocument]^'
'* －－－－－－－－－－－－－－－－－－－－－－－－－－－－－
Sub my_Find1()
'用时8.644531,8.402344,8.433594
    Dim N As Long, StartTime As Single, EndTime As Single
    StartTime = VBA.Timer
    Selection.HomeKey wdStory
    Do
        With Selection.Find
            .Text = "敏捷"
            .Wrap = wdFindStop
            .Forward = True
            If .Execute = False Then Exit Do
            Selection.Text = "Excelhome_Word" & N
            Selection.Collapse wdCollapseEnd
            N = N + 1
        End With
    Loop
    EndTime = VBA.Timer
    Debug.Print EndTime - StartTime
    MsgBox "Word共用时" & EndTime - StartTime & "完成了" & N & "次替换!", vbInformation
End Sub
'----------------------
4.2 Range对象的Find对象
'* ＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋
'* Created By SHOUROU@ExcelHome 2008-1-28 6:36:08
'仅测试于System: Windows NT Word: 11.0 Language: 2052
'№ 0319^The Code CopyIn [ThisDocument-ThisDocument]^'
'* －－－－－－－－－－－－－－－－－－－－－－－－－－－－－
Sub my_Find2()
'用时12.26563,12.21875,12.33984
    Dim myRange As Range, N As Long
    Dim StartTime As Single, EndTime As Single
    StartTime = VBA.Timer
    Set myRange = ActiveDocument.Range(0, 0)
    Do
        With myRange.Find
            .Text = "敏捷"
            .Wrap = wdFindStop
            .Forward = True
            If .Execute = False Then Exit Do
            N = N + 1
            myRange.Text = "Excelhome_Word" & N
            myRange.Collapse wdCollapseEnd
        End With
    Loop
    EndTime = VBA.Timer
    Debug.Print EndTime - StartTime
    MsgBox "Word共用时" & EndTime - StartTime & "完成了" & N & "次替换!", vbInformation
End Sub
'----------------------
4.3 Range对象的Find对象（Setrange方法）
'* ＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋＋
'* Created By SHOUROU@ExcelHome 2008-1-28 6:38:52
'仅测试于System: Windows NT Word: 11.0 Language: 2052
'№ 0320^The Code CopyIn [ThisDocument-ThisDocument]^'
'* －－－－－－－－－－－－－－－－－－－－－－－－－－－－－
Sub my_Find3()
'用时12.56641,12.46875,12.51563
    Dim myRange As Range, N As Long
    Dim StartTime As Single, EndTime As Single
    StartTime = VBA.Timer
    Set myRange = ActiveDocument.Content
    Do
        With myRange.Find
            .Text = "敏捷"
            If .Execute = False Then Exit Do
            N = N + 1
            myRange.Text = "Excelhome_Word" & N
            myRange.SetRange myRange.End, ActiveDocument.Content.End
        End With
    Loop
    EndTime = VBA.Timer
    Debug.Print EndTime - StartTime
    MsgBox "Word共用时" & EndTime - StartTime & "完成了" & N & "次替换!", vbInformation
End Sub
'----------------------
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
在非全部替换中，往往需要使用缩减查找区域。使用Selection对象的Find对象时，比使用Range对象更快一些（前者平均用时8.493489667S，后者平时用时（12.395835S），而在Range对象的Find对象中，使用Collapse方法（12.27474S）优于SetRange的方法（12.51693S）
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abcd321abcd

谢谢守柔版主提供，已收下，学习中...........

konggs

谢谢老大分享，好好学习，天天向上。

wenz

我对查找替换还很雾,慢慢学习.

xbq602

慢慢学习中！！！！！！

sgrshh29

谢谢!