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asp 截取字符串函数,计算一汉字等于2个英文
时间：2022-07-02 23:01:15 编辑：袖梨 来源：一聚教程网
'str 要截取的字符串
'strlen 截取字数
'str2 截取字符串后要加的字符。如：...
function gotTopic(str,strlen,str2)
if str="" or isnull(str) then
gotTopic=""
exit function
end if
dim l,t,c, i
str=replace(replace(replace(replace(str," "," "),""",chr(34)),">",">"),"<","<")
l=len(str)
t=0
for i=1 to l
c=Abs(Asc(Mid(str,i,1)))
if c>255 then
t=t+2
else
t=t+1
end if
if t>cint(strlen) then
if str2<>"" then i=i-1
gotTopic=left(str,i-1) & str2
exit for
else
gotTopic=str
end if
next
gotTopic=replace(replace(replace(replace(gotTopic," "," "),chr(34),"""),">",">"),"<","<")
end function
这个函数可以过滤html来截取哦，就是html与汉字混合的他也可以只截取中文哦。