1.使用StringUtils,需要导包 String strs = "abcdef1003535197"; System.out.println("===2===" + StringUtils.substringBefore(strs, "3")); //从开始截取到第一个“3”(不包含) System.out.println("===3===" + StringUtils.substringBeforeSQL中字符串截取函数...
functionToLower:string;functionToLower(LocaleID: TLocaleID):string;functionToLowerInvariant:string;functionToUpper:string;functionToUpper(LocaleID: TLocaleID):string;functionToUpperInvariant:string;classfunctionLowerCase(constS:string):string;classfunctionLowerCase(constS:string; LocaleOptions: TLocaleOptions):stri...
———- Pos function Returns the index value of the first character in a specified substring that occurs in a given string. Unit System Category string handling routines function Pos(Substr: string; S: string): Integer; Description Pos searches for a substring, Substr, in a string, S. Subst...
update itemcode set code=replace(code,left(code,8),left(code,3)+'-'+substring(code,4,2)+'-'+substring(code,6,3)) where code like '40%' 问: replace(code,left(code,8),left(code,3)+'-'+substring(code,4,2)+'-'+substring(code,6,3))是什么意思? 答: 拿code=123456789 做例子 a...
截取字符串中的某一些字符strSource:源字符串 strBegin: 开始位置 strEnd: 结束位置字符串 例:GetStr('abcd1234',1,'34')返回值:'abcd12' function GetStrByIndex(StrSource:string; BeginIndex:integer;StrEnd: string): string; var in_star,in_end:integer; begin in_star:=BeginIndex; in_end:=AnsiPos...
string sceneName = "12-手机122345678"; sceneName = sceneName.Substring(0, sceneName.IndexOf('-')); Delphi语言实现相同的功能,分别使用了Copy和Substring函数:欢迎加入Delphi开发局QQ群:32422310 var sceneName :string; begin sceneName := '12-手机122345678'; ...
Str = new string(cs); for (int j = 0; j < Str.Length; j++) { if ((j + 1) % 8 == 0) { result += ByteToChar(Str.Substring(j - 7, 8)); } } return result; } string ByteToChar(string ByteStr) { double IntVal = 0; ...
Pos:Locates a substring in a given string.The Pos method returns an index of the first occurence of Substr in Str, starting the search at Offset.This method returns zero if Substr is not found or Offset is invalid (for example, if Offset exceeds the String length or is less ...
function HexStrToStr(const S:string):string; //16进制字符串转换成字符串 var t:Integer; ts:string; M,Code:Integer; begin t:=1; Result:=''; while t<=Length(S) do begin //xlh 2006.10.21 while (t<=Length(S)) and (not (S[t] in ['0'..'9','A'..'F','a'..'f'])) do...
SubstringOSubstringO Lower(char_expr)有有有无 Upper(char.expr)有有有无 类型转换函数: Conert(datatype,expr有有To_char(),To_da可用cast(某某as te()To_number()newtype)代替 ession[,style]) Oracle可自动识 别函数、运算符, 并自动转换类型 ...