验证字符串是否包含有效字符.asp

较为详细的介绍了asp自定义的各种函数,方便asp的各种开发.

<%
FUNCTION TestString(SomeString)
TempString = TRIM(SomeString)
TempString_Length = Len(TempString)
TempString_OK = true
FOR TempString_Pos = 1 TO TempString_Length
  TempString_Char = Mid(TempString,TempString_Pos)
  TempString_Char_Ansi = Asc(TempString_Char)
  IF TempString_Char_Ansi > 47 AND TempString_Char_Ansi < 123 THEN  'ANSI字符中:A-Z 是65-90,a-z是97-122,0-9是48-57
    IF TempString_Char_Ansi > 57 AND TempString_Char_Ansi < 65 THEN
    TempString_OK = False
    EXIT FOR
    END IF
    IF TempString_Char_Ansi > 90 AND TempString_Char_Ansi < 97 THEN
    TempString_OK = False
    EXIT FOR
    END IF
  ELSE
    TempString_OK = False
    EXIT FOR
  END IF
NEXT
TestString = TempString_OK
END FUNCTION
%>

   
<%IF TestString("合") THEN%>
恭喜,字符串合法!
<%ELSE%>
噢,里面有非法字符串!
<%END IF%>