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ASP實(shí)現(xiàn)類似hashMap功能的類

瀏覽:175日期:2022-06-05 11:14:49

java中的hashMap存取數(shù)據(jù)非常方便,可惜ASP中沒有類似的類。作者在開發(fā)程序中需要類似的數(shù)據(jù)類型,于是構(gòu)造了一個(gè)能基本類似hashMap功能的類,可以實(shí)現(xiàn)鍵值存取操作等,存取的數(shù)據(jù)可以為ASP 中的任何基本類型。
下面是程序的代碼,貼到一個(gè)空的ASP中可以直接運(yùn)行。

<% 
set jb51 = new Jb 
"給mp對(duì)象賦值 
jb51.putv "a","jb51.net" 
jb51.putv "b","www.jb51.net" 
jb51.putv "c","https://www.jb51.net" 
response.write "[鍵值數(shù)量]:"&jb51.count 
response.write "<br>" 
response.write "[a]:"&jb51.getv("a") 
response.write "<br>" 
response.write ":"&jb51.getv("b") 
response.write "<br>" 
response.write "[c]:"&jb51.getv("c") 
response.write "<hr>" 
"刪除key為"b"的鍵值 
jb51.delv "b" 
response.write "[鍵值數(shù)量]:"&jb51.count 
response.write "<br>" 
response.write "[a]:"&jb51.getv("a") 
response.write "<br>" 
response.write ":"&jb51.getv("b") 
response.write "<br>" 
response.write "[c]:"&jb51.getv("c") 
response.write "<hr>" 
"清空jb51的所有值 
jb51.clear 
"給key為"c"的鍵值重新賦值 
jb51.putv "c","https://www.jb51.net" 
response.write "[鍵值數(shù)量]:"&jb51.count 
response.write "<br>" 
response.write "[a]:"&jb51.getv("a") 
response.write "<br>" 
response.write ":"&jb51.getv("b") 
response.write "<br>" 
response.write "[c]:"&jb51.getv("c") 
response.write "<hr>" 
Class MtMap 
private arr() 
private arr_len 
"構(gòu)造函數(shù) 
private Sub Class_Initialize 
"其中 arr(0,n)為key,arr(1,n)為value 
arr_len = 0 
redim arr(1,arr_len) 
end sub 

"賦值,如果存在則覆蓋 
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為"k"的鍵值 
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 

"刪除key為"k"的鍵值 
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 

"獲得jb51中鍵值的數(shù)量 
public property get count() 
count = arr_len 
end property 

"清空jb51中所有的鍵值 
public sub clear() 
arr_len = 0 
redim arr(1,1) 
end sub 
end class 
%>

以上就是分享的ASP如何實(shí)現(xiàn)類似hashMap功能的類,希望對(duì)大家的學(xué)習(xí)有所啟發(fā)。

標(biāo)簽: ASP
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