让len(),left(),right()函数能正常识别中文

本文对ASP函数len()，Left()及right()进行了改写，以便是能识别中文：

Function Strlength(Str)
            Temp_Str=Len(Str)
            For I=1 To Temp_Str
                  Test_Str=(Mid(Str,I,1))
                  If Asc(Test_Str)>0 Then
                          Strlength=Strlength+1
                  Else
                          Strlength=Strlength+2
                  End If
            Next
        End Function

Function Strleft(Str,L)
                Temp_Str=Len(Str)
                For I=1 To Temp_Str
                         Test_Str=(Mid(Str,I,1))
                          Strleft=Strleft&Test_Str
                          If Asc(Test_Str)>0 Then
                                lens=lens+1
                          Else
                                lens=lens+2
                          End If
                          If lens>=L Then Exit For
                Next
        End Function

Function Strright(Str,L)
              Temp_Str=Len(Str)
              For i = Temp_Str to 1 step -1
                   Test_Str=(Mid(Str,I,1))
                   Strright=Test_Str&Strright
                   If Asc(Test_Str)>0 Then
                        lens=lens+1
                   Else
                         lens=lens+2
                   End If
                   If lens>=L Then Exit For
              Next
        End Function