※公告
※我的分类(专题)
※日志更新
※最新评论
※留言板
※搜索
※链接
※Blog信息
|
|
|
Asp几个自定义函数 admin 发表于 2006-9-26 10:55:51 |
GetRepeatTimes(TheChar,TheString) 得到一个字符串在另一个字符串当中出现几次的函数(新)
如: response.write GetRepeatTimes("w","www.51windows.net") response.write GetRepeatTimes("ww","wwwww")
在网上看到过一个CheckTheChar(TheChar,TheString)函数,有个bug,在检测wwwww中有几个ww时,会错误的返回4个!
cLeft(string, length) 返回指定数目的从字符串的左边算起的字符,区分单双字节。
如: Dim MyString, LeftString MyString = "文字测试VBSCript" LeftString = cLeft(MyString, 10) 返回 "文字测试VB"。
MyRandc(n) 生成随机字符,n为字符的个数
如: response.write MyRandn(10) 输出10个随机字符
MyRandn(n) 生成随机数字,n为数字的个数
如: response.write MyRandn(10) 输出10个随机数字
formatQueryStr(str) 格式化sql中的like字符串. 如: q = Request("q") q = formatQueryStr(q) sql = "select * from [table] where aa like '%"& q &"%'"
GetRnd(min,max) 返回min - max之间的一个随机数
如: response.write GetRnd(100,200) 输出大于100到200之间的一个随机数
RegReplace(str,regexStr,RepalceStr) 对str 进行正则替换
如: htmlstr = "123<img src="/"asdf.gif"" border=""0"">45<b>6</b>" htmlstr2 = RegReplace(htmlstr,"<(.[^><]*)>","") 返回 htmlstr2 为123456
function cLeft(str,n) dim str1,str2,alln,Islefted str2 = "" alln = 0 str1 = str Islefted = false if isnull(str) then cleft = "" exit function end if for i = 1 to len(str1) nowstr = mid(str1,i,1) if asc(nowstr)<0 then alln = alln + 2 else alln = alln + 1 end if if (alln<=n) then str2 = str2 & nowstr else Islefted = true exit for end if next if Islefted then str2 = str2 & ".." end if cleft = str2 end function
function MyRandc(n) '生成随机字符,n为字符的个数 dim thechr thechr = "" for i=1 to n dim zNum,zNum2 Randomize zNum = cint(25*Rnd) zNum2 = cint(10*Rnd) if zNum2 mod 2 = 0 then zNum = zNum + 97 else zNum = zNum + 65 end if thechr = thechr & chr(zNum) next MyRandc = thechr end function
function MyRandn(n) '生成随机数字,n为数字的个数 dim thechr thechr = "" for i=1 to n dim zNum,zNum2 Randomize zNum = cint(9*Rnd) zNum = zNum + 48 thechr = thechr & chr(zNum) next MyRandn = thechr end function
function formatQueryStr(str) '格式化sql中的like字符串 dim nstr nstr = str nstr = replace(nstr,chr(0),"") nstr = replace(nstr,"'","''") nstr = replace(nstr,"[","[[]") nstr = replace(nstr,"%","[%]") formatQueryStr = nstr end function
function GetRnd(min,max) Randomize GetRnd = Int((max - min + 1) * Rnd + min) end function
Function GetRepeatTimes(TheChar,TheString) GetRepeatTimes = (len(TheString)-len(replace(TheString,TheChar,"")))/len(TheChar) End Function
Function RegReplace(Str,PatternStr,RepStr) Dim NewStr,regEx NewStr = Str if isnull(NewStr) then RegReplace = "" exit function end if Set regEx = New RegExp regEx.IgnoreCase = True regEx.Global = True regEx.Pattern=PatternStr NewStr = regEx.Replace(NewStr,RepStr) RegReplace = NewStr end function |
|
发表评论:
| | |