下面小编跟大家分享ASP中实现的类似URLEncode的编码函数及对应解码函数，一起来学习下过程究竟如何进行吧！喜欢就赶紧收藏起来哦~
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'
'All Rights Reserved,[email protected]
Function Encode(Str)
Dim Count, Pos, Ch, Code
Dim SweetCh
'SweetCh中表示不需要进行编码的字符
SweetCh = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz_{}[]()"
Encode = ""
Count = Len(Str)
Pos = 1
Do While Pos=Count
Ch = Mid(Str, Pos, 1)
Code = Asc(Ch)
If Code=0 And Code256 Then '汉字不予处理
If Ch"%" Then
If InStr(SweetCh, Ch)=0 Then
Ch = "%" & Right("0" & Hex(Code), 2)
End If
Else
Ch = "%25"
End If
End If
Encode = Encode & Ch
Pos = Pos + 1
Loop
End Function
Function Decode(Str)
Dim Count, Pos, Ch, Code
Decode = ""
Count = Len(Str)
Pos = 1
Do While Pos=Count
Ch = Mid(Str, Pos, 1)
If Ch="%" Then
If Pos+2=Count Then
Ch = Chr((InStr("0123456789ABCDEF", UCase(Mid(Str, Pos+1, 1)))-1) * 16 + InStr("0123456789ABCDEF",UCase(Mid(Str, Pos+2, 1))) - 1)
Else
'编码串不正确
Ch = ""
End If
Pos = Pos + 2
End If
Decode = Decode & Ch
Pos = Pos + 1
Loop
End Function
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