【下载文档:  asp实现类似hashMap功能的类.txt 】

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ASP实现类似hashMap功能的类
java中的hashMap存取数据非常方便，可惜ASP中没有类似的类。作者在开发程序中需要类似的数据类型，于是构造了一个能基本类似hashMap功能的类，可以实现键值存取操作等，存取的数据可以为ASP 中的任何基本类型。
下面是程序的代码，贴到一个空的ASP中可以直接运行。
<%
set jb51 = new Jb
'给mp对象赋值
jb51.putv "a","zwyuanma.com"
jb51.putv "b","www.zwyuanma.com"
jb51.putv "c","//www.zwyuanma.com"
response.write "[键值数量]:"&jb51.count
response.write "
"
response.write "[a]:"&jb51.getv("a")
response.write "
"
response.write ":"&jb51.getv("b")
response.write "
"
response.write "[c]:"&jb51.getv("c")
response.write "

---

"
'删除key为"b"的键值
jb51.delv "b"
response.write "[键值数量]:"&jb51.count
response.write "
"
response.write "[a]:"&jb51.getv("a")
response.write "
"
response.write ":"&jb51.getv("b")
response.write "
"
response.write "[c]:"&jb51.getv("c")
response.write "

---

"
'清空jb51的所有值
jb51.clear
'给key为"c"的键值重新赋值
jb51.putv "c","//www.zwyuanma.com"
response.write "[键值数量]:"&jb51.count
response.write "
"
response.write "[a]:"&jb51.getv("a")
response.write "
"
response.write ":"&jb51.getv("b")
response.write "
"
response.write "[c]:"&jb51.getv("c")
response.write "

---

"
Class MtMap
private arr()
private arr_len
'构造函数
private Sub Class_Initialize
'其中 arr(0,n)为key,arr(1,n)为value
arr_len = 0
redim arr(1,arr_len)
end sub
'赋值,如果存在则覆盖
public sub putv(k,v)
dim is_update
is_update = false
arr_len = ubound(arr,2)
for i=0 to arr_len-1
if k=arr(0,i) then
arr(1,i) = v
is_update = true
exit for
end if
next
if not is_update then
arr_len = arr_len +1
redim preserve arr(1,arr_len)
arr(0,arr_len) = k
arr(1,arr_len) = v
end if
end sub
'取得key为"k"的键值
public function getv(k)
dim v
v = ""
for i=0 to arr_len
if k=arr(0,i) then
v = arr(1,i)
exit for
end if
next
getv = v
end function
'删除key为"k"的键值
public sub delv(k)
arr_len = ubound(arr,2)
for i=0 to arr_len
if k=arr(0,i) then
v = arr(1,i)
for k = i to arr_len-1
arr(0,k) = arr(0,k+1)
arr(1,k) = arr(1,k+1)
next
arr_len = arr_len - 1
redim preserve arr(1,arr_len)
exit for
end if
next
end sub
'获得jb51中键值的数量
public property get count()
count = arr_len
end property
'清空jb51中所有的键值
public sub clear()
arr_len = 0
redim arr(1,1)
end sub
end class
%>
以上就是分享的ASP如何实现类似hashMap功能的类，希望对大家的学习有所启发。