字符处理——字符替换

字符替换在Excel使用过程中应该比较常用，比如清除不可见字符、替换某些特殊字符等。

效果：

创建两个Ribbon菜单按钮，首先在customUI.xml中增加代码：

        <menuSeparator id="rbSepString01" title="================="/>

        <button id="rbbtnClean" label="清除不可见字符" onAction="rbbtnClean" imageMso="QueryBuilder"/>
        <button id="rbbtnRepBrackets" label="替换中文括号" onAction="rbbtnRepBrackets"/>

回调函数：

Sub rbbtnClean(control As IRibbonControl)
    Call MRange.Clean
End Sub
Sub rbbtnRepBrackets(control As IRibbonControl)
    Call MRange.RepBrackets
End Sub

函数实现：

Sub RepBrackets()
    Dim rng As Range, selectRng As Range
    Dim str As String
    
    '确保选中的是单元格
    If TypeName(Selection) = "Range" Then
        Set selectRng = Selection
        
        For Each rng In selectRng
            str = VBA.CStr(rng.Value)
            str = VBA.Replace(str, "（", "(")
            str = VBA.Replace(str, "）", ")")
            rng.Value = str
        Next rng
    End If
    
    Set rng = Nothing
    Set selectRng = Nothing
End Sub

Sub Clean()
    Dim rng As Range, selectRng As Range
    
    '确保选中的是单元格
    If TypeName(Selection) = "Range" Then
        Set selectRng = Selection
        
        For Each rng In selectRng
            '直接调用Excel内置的Clean函数
            rng.Value = Application.WorksheetFunction.Clean(rng.Value)
        Next rng
    End If
    
    Set rng = Nothing
    Set selectRng = Nothing
End Sub

注意：Excel内置的Clean函数可以清除ASCII字符为1-31的不可见字符，但是129之后的字符是不能清除的。

另外可以根据自己实际工作需要，实现一些用的上的字符替换功能。