How to judge whether a character is a _asp basis of Chinese characters in ASP

In the program design we often need to check whether the user input is correct, especially the name, address and so on is not the input of Chinese characters. So, how to judge a character is not Chinese? In fact, there are at least two ways of ASP
First, the direct conversion of a character to ASCII code, if it is in English, he should be 0-127 of the range, and the Chinese character is a relatively large number, so you can use the following code to determine:
If ABS (ASC (WHICHCHAR)) >127 Then
Response.Write Whichchar & "is a Chinese character"
Else
Response.Write Whichchar & "Not a Chinese character"
End If
Second, the Unicode coding range of Chinese characters is 4e00-9fa5, so using regular expression test can judge whether a Chinese character is Chinese character or not.
Set Regexpobj=new regexp
Regexpobj.pattern= "^[\u4e00-\u9fa5]+$"
Regcheck=regexpobj.test (Whichchar)
Set regexpobj=nothing
If Regcheck Then
Response.Write Whichchar & "is Chinese character"
Else
Resposne.write Whichchar & "not Chinese characters"
End If