截取实际长度字符串，并用空格替换

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function cutstr(thestr,strlen)
dim l,t,c
l=len(thestr)
t=0
for dxy=1 to l
c=Abs(asc(Mid(thestr,dxy,1)))
if c>255 then
t=t+2
else
t=t+1
end if
if t>=strlen then
thev=left(thestr,dxy)
exit for
else
bu=strlen-t
for bui=1 to bu
strbu=" "
strbuall=strbuall&strbu
next
thev=thestr&strbuall
strbu=""
strbuall=""
end if
next
cutstr=thev
end function

<%
''============================
''函数名w_cut(type,num)
''作用：字符串截取
''参数type,num
''type:字符串内容
''num:字符串被截取的长度
''=============================

Function w_cut(types,num)
dim ctypes,cnum,ci,tt,tc,cc
ctypes=types:cnum=int(num):w_cut="":tc=0:cc=0
for ci=1 to len(ctypes)
if cnum<0 then w_cut=w_cut&"...":exit for
tt=mid(ctypes,ci,1)
if int(asc(tt))>=0 then
w_cut=w_cut&tt
tc=tc+1:cc=cc+1
if tc=2 then
tc=0:cnum=cnum-1
end if
if cc>5 then cnum=cnum-1:cc=0
else
cnum=cnum-1
if cnum<=0 then w_cut=w_cut&"...":exit for
w_cut=w_cut&tt
end if
next
End Function

%>