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| asp截取正确的英文/汉字长度 |
| 作者：admin 发表时间：2014/9/23 人气： |
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'***************************************************
'函数名称: GetTrueLength(strChinese, lenMaxWord, strSpaceBar)
'函数功能: 截取正确的英文/汉字长度
'参数说明: strChinese 为被检测字符串
' lenMaxWord 为限制的字符长度
' strSpaceBar 为要过滤(去掉)的字符
'返回 值 : 格式化的字符串(注：一个中文两个字符。)
'***************************************************
Function GetTrueLength(strChinese, lenMaxWord, strSpaceBar)
dim i, j, strTail, lenTotal, lenWord, lenNow
dim strWord, bOverFlow, RetString
if strChinese = "" or vartype(strChinese) = vbNull or CLng(lenMaxWord) <= 0 then
GetTrueLength = ""
exit function
end if
strTail = "..." '标题截取后的表示,如“…”
bOverFlow = False
lenTotal = 0
for i=1 to Len(strChinese)
strWord = mid(strChinese, i, 1)
if asc(strWord) < 0 or asc(strWord) > 127 then
lenTotal = lenTotal + 2
else
lenTotal = lenTotal + 1
end if
next
'判断字符是否溢出
if lenTotal > lenMaxWord then bOverFlow = True
strSpaceBar = ""
if bOverFlow = True then
'字符溢出,去尾
lenWord = 0
RetString = ""
for i=1 to Len(strChinese)
strWord = mid(strChinese, i, 1)
if asc(strWord) < 0 or asc(strWord) > 127 then lenNow = 2 else lenNow = 1
lenWord = lenWord + lenNow
'截掉多余部分
if lenWord <= (lenMaxWord - Len(strTail)) then
RetString = RetString + strWord
else
RetString = RetString + strTail
lenWord = lenWord + Len(strTail) - lenNow
if (lenMaxWord-lenWord)>0 then
for j =1 to lenMaxWord-lenWord
strSpaceBar = strSpaceBar + " "
next
end if
GetTrueLength = RetString
exit for
end if
next
else
'字符不溢出,填充空位
RetString = strChinese
if (lenMaxWord-lenTotal)>0 then
for i =1 to lenMaxWord-lenTotal
strSpaceBar = strSpaceBar + " "
next
end if
GetTrueLength = RetString ''''''''''& strSpaceBar
end if
end function
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文章来源：www.sensheng.net.cn |
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