这个类是用于处理字符串的，是老外写的，我把里面的功能和参数加了说明

使用方法：

=============== test.asp================

<!--#include file="StringOperations.asp"-->

<%
dim str
set str = New StringOperations
test = str.toCharArray("check this out")
response.write "<strong>str.toCharArray</strong>: "
for i = 0 to ubound(test)
response.write test(i) & " "
next

response.write "<BR><BR>"
test1 = str.arrayToString(test)
response.write "<strong>str.arrayToString</strong>: " & test1

response.write "<BR><BR>"
response.write "<strong>str.startsWith</strong>: " & str.startsWith(test1, "ch")

response.write "<BR><BR>"
response.write "<strong>str.endWith</strong>: " & str.endsWith(test1, "out")

response.write "<BR><BR>"
response.write "<strong>str.clone</strong>: " & str.clone("abc", 10)

response.write "<BR><BR>"
response.write "<strong>str.trimStart</strong>: " & str.trimStart(test1, 3)

response.write "<BR><BR>"
response.write "<strong>str.trimEnd</strong>: " & str.trimEnd(test1, 2)

response.write "<BR><BR>"
response.write "<strong>str.swapCase</strong>: " & str.swapCase("HiHiHi")

response.write "<BR><BR>"
response.write "<strong>str.isAlphabetic</strong>: " & str.isAlphabetic("!")

response.write "<BR><BR>"
response.write "<strong>str.capitalize</strong>: " & str.capitalize("clara fehler")
Set str = Nothing
%>

=============== StringOperations.asp================




<%
class StringOperations

'****************************************************************************
'' @功能说明: 把字符串换为char型数组
'' @参数说明: - str [string]: 需要转换的字符串
'' @返回值: - [Array] Char型数组
'****************************************************************************
public function toCharArray(byVal str)
redim charArray(len(str))
for i = 1 to len(str)
charArray(i-1) = Mid(str,i,1)
next
toCharArray = charArray
end function

'****************************************************************************
'' @功能说明: 把一个数组转换成一个字符串
'' @参数说明: - arr [Array]: 需要转换的数据
'' @返回值: - [string] 字符串
'****************************************************************************
public function arrayToString(byVal arr)
for i = 0 to UBound(arr)
strObj = strObj & arr(i)
next
arrayToString = strObj
end function

'****************************************************************************
'' @功能说明: 检查源字符串str是否以chars开头
'' @参数说明: - str [string]: 源字符串
'' @参数说明: - chars [string]: 比较的字符/字符串
'' @返回值: - [bool]
'****************************************************************************
public function startsWith(byVal str, chars)
if Left(str,len(chars)) = chars then
startsWith = true
else
startsWith = false
end if
end function

'****************************************************************************
'' @功能说明: 检查源字符串str是否以chars结尾
'' @参数说明: - str [string]: 源字符串
'' @参数说明: - chars [string]: 比较的字符/字符串
'' @返回值: - [bool]
'****************************************************************************
public function endsWith(byVal str, chars)
if Right(str,len(chars)) = chars then
endsWith = t