ASP.NET中检测含有中文字符串的实际长度

以下就是在ＡＳＰ．ＮＥＴ中检测含有中文字符串的实际长度，这个可能在很多地方都用的上．

　　ＶＢ．ＮＥＴ的写法：
      Function StrLength(Byval Str As String) As Integer
　　         Dim En As ASCIIEncoding=New ASCIIEncoding ()
               Dim B As Byte()=En.GetBytes(Str)
               Dim i As Integer=0
               Dim Length As Integer=0
               For i=0 To B.Length-1
                    If B(i)=63 Then
                       Length+=1
                    End If
                    Length+=1
               Next
               Return Length
       End Function

       以下是Ｃ＃的写法：
　　 function int StrLength(string Str)
       {
              ASCIIEncoding En=new ASCIIEncoding();
              Byte[] B=En.GetBytes(Str);
              int Length=0;
              for(i=0;i<=B.Length-1;i++)
              {
                    if(B==63)
                    {
                          Length+=1;
                     }
                     Length +=1;
               }
               return Length;
        }

　　不过以上这段代码会比较慢一些，还有一些比较快速一点的解决方法，下次有时间写出来．