Question

用VBScript编个函数

编写一个函数jiequ(mystr,mynum)，该函数实现的功能如下：
当需要截取的字符串少于mynum个字符，则输出原来字符串；
当需要截取的字符串多于mynum个字符，则截取前mynum个字符并在后面加“…”
Jiequ(“abceefefwererwerweeeeeeee”,10)
Abceefefwe…

Answer 1

用这段把，动易公司开发的系统都是用搞的这个，只不是函数名称不同，但是觉得功能一样！
'**************************************************
'函数名：gotTopic
'作 用：截字符串，汉字一个算两个字符，英文算一个字符
'参 数：str ----原字符串
' strlen ----截取长度
'返回值：截取后的字符串
'**************************************************

function gotTopic(str,strlen)
if 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>=strlen then
gotTopic=left(str,i) & "…"
exit for
else
gotTopic=str
end if
next
gotTopic=replace(replace(replace(replace(gotTopic," "," "),chr(34),"""),">",">"),"<","<")
end function