ASP

String

request to get left side of string :: count by setting number

取出字符串由左1位开始算的字 :: 可设要取的字数

Form:: Left(Txt,n)

calling left side of string and returning characters from string::
request 7 characters from "welcome learning" as the string
(one Chinese character = 2 English characters)

传回一字符串由左1位开始算的字符
(一中文=两个英文字符)

ASP

String

request to get right side of string :: count by setting number

取出字符串由右1位开始向左算的字 :: 可设要取的字数

calling begin from the right side of 
string and returning characters from 

string:: request 8 characters from "welcome learning" 
as the string (one Chinese character space= 2 English characters)

传回一字符串由右的第1位开始向左算的字符 (一中文=两个英文字符)

ASP

String

String text length (counting characters include space)

字符串长度 (算出字符长度)

Len(X): to count the total length of a string X

example: often be used at submit required
a length of characters limitation

usage: often combines with Trim(X), Right(X,n), Left(X,n), Min(X,m,n)
--------------------------------
do not use length(________)
do not use len("_______")

Len(X): 算出X自串字符长度
(通常一中文字等于两个英文字符)

例: 常在传送前检查字符串的长短是否吻合要求

使用: 常合并与Trim(X), Right(X,n), Left(X,n), Min(X,m,n) 一起使用

ASP

String

Mid(string,start[,length])

截取字符串中间的字符

Form:: Mid(string,start[,length])
Mid(Txt,n)
Mid(Txt,n,m)
Txt  is  string
n     is  starting place
m    is   length .... is not necessary : no length = to the end

读取一字符串中由指定的位置算起,截取指定的长度
Txt  : 字符串
n     :  起点位置
m    :  长度

ASP

String

split long strings by any " string "

以 某 " 字符串 " 分隔某长字符串

strArray = Split(Longstr, "str")

数组 = 分隔指令 (长字符串, "短字符串")
使用短字符串来分隔长字符串

ASP

String

Replace

ASP

String

ASP : Trim( string )

去掉字串两边的空格

To delete two spaces at the beginning and the end.

######
but trim may not prevent chr(255)　
asc: "Alt+255"

去掉字串两边的空格

不防止chr(255)特殊空格
asc代码是255
Alt+255",按住alt键然后依次按下小键盘中"2"，"5"，"5"

ASP

String

like '%xampl%'  to search for a pattern

like '%_____%'