一个asp快速字符串连接类

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"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
"快速字符串连接类
"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
"名称：Class_FastString
"来源：http://www.jansfreeware.com
"整理：qihangnet
"更新：2005年6月15日
"作用：高效地进行字符串连接，比 str = str & "abc"的方法快很多
"授权：免费使用
"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Class Class_FastString

"************************************
"变量定义
"************************************
"index --- 字符串数组的下标
"ub ------ 用于调整数组度数的整数变量
"ar() ---- 字符串数组

Private index, ub, ar()

"************************************
"实例 初始化/终止
"************************************

Private Sub Class_Initialize()
Redim ar(50)
index = 0
ub = 49
End Sub

Private Sub Class_Terminate()
Erase ar
End Sub

"************************************
"事件
"************************************

"默认事件，添加字符串
Public Default Sub Add(value)
ar(index) = value
index = index+1
If index>ub Then
ub = ub + 50
Redim Preserve ar(ub)
End if
End Sub

"************************************
"方法
"************************************

"返回连接后的字符串
Public Function Dump
Redim preserve ar(index-1)
Dump = join(ar,"") "关键所在哦^_^
End Function

End class
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