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用函数简化你的字符串连接语句

1970-1-1 08:00| 发布者: goodidea『文章』| 查看: 2451| 评论: 0

'2004/07/27 朱彦志(goodidea)  myad@yeah.net

'你是否非常讨厌 用 & 一大串的连接变量?
'你是否不得不经常使用""与"""" ?
'就好像这样:
'strFilter = strFilter & " and [" & strFldname & "] like """ & strValue & """"
'
'strSql ="insert into tblpubStyle (Class,Prop,Value,Type,[Set],memo,flag)  values ('" & _
'                ctl.ControlType & "','" & _
'                prp.Name & "','" & _
'                prp.Value & "','" & _
'                prp.Type & "', " & _
'                2 & "," & _
'                "' ', " & _
'                false ")"
'
'strCnn = "Provider=sqloledb;" & _
'             "Data Source=" & strServerName & ";" & _
'             "Initial Catalog=" & strDbname & ";" & _
'             "User Id=" & strUid & ";" & _
'             "Password=" & strPwd & ";"
'
'用它,gCombinationString,这个十分简单的函数,让冗长的代码更简洁,增强语句可读性
'以下是它的使用典型形式:
'strFilter = gCombinationString( "$1 and [$2] like ""$3""",strFilter,strFldname,strValue)
'strCnn= gCombinationString("Provider=sqloledb;Data Source=$1;Initial Catalog=$2;User Id=$3;Password=$4;",_
'                            strServerName ,strDbname ,strUid, strPwd)
'参数个数不限,参数类型不限
' strSql = gCombinationString("insert into tblpubStyle (Class,Prop,Value,Type,[Set],memo,flag) " & _
'         " values ('$1','$2','$3','$4',$5,$6)", _
'         ctl.ControlType, prp.Name, prp.Value, prp.Type, 2, False)
'

    Const strCharPre = "$"
    Dim varItem As Variant
    Dim i As Integer
   
    i = 0
    For Each varItem In Para
        i = i + 1
        strText = VBA.Replace(strText, strCharPre & i, varItem)
        strText = VBA.Replace(strText, strCharPre & "\", strCharPre)
    Next
    gCombinationString = strText
End Function

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