asp.net中中文亂碼問題

asp.net預設的編碼為utf-8，當與其它平台互動處理的字串中有中文時往往會出現亂碼，這是由於其它平台多採取GB2312編碼，要解決這一問題，可編寫一個函數，對字串先轉換再處理就行了，下面是該函數的原始碼：

Imports System.MathFunction URLEncoding(ByVal vstrIn As String)   Dim strReturn As String   strReturn = ""   Dim i As Integer   Dim ThisChr As String   Dim innerCode, Hight8, Low8 As Integer   For i = 1 To vstrIn.Length       ThisChr = Mid(vstrIn, i, 1)          If Abs(Asc(ThisChr)) < &HFF Then                strReturn = strReturn & ThisChr          Else                 innerCode = Asc(ThisChr)           If innerCode < 0 Then                innerCode = innerCode + &H10000           End If           Hight8 = (innerCode And &HFF00) / &HFF           Low8 = innerCode And &HFF           strReturn = strReturn & "%" & Hex(Hight8) & "%" & Hex(Low8)      End If Next URLEncoding = strReturnEnd Function