(1)去掉所有的特殊字符和标点符号 +(NSString *)deleteCharacters:(NSString *)targetString{if(targetString.length==0|| !targetString) {returnnil; } NSError*error =nil; NSString*pattern =@"[^a-zA-Z0-9\u4e00-\u9fa5]";//正则取反NSRegularExpression *regularExpress = [NSRegularExpression reg...
一个在字符串中执行查找匹配的String方法,返回一个数组,未匹配则返回null ⑦exec方法和match方法的区别 exec是正则表达式的方法,而不是字符串的方法,它的参数才是字符串,如下所示: var reg = new RegExp( "abc") var str = "3abc4,5abc6" reg.exec(str ); 2. match是字符串执行匹配正则表达式规则的...
QRegularExpression::PatternOptionsoption=re.patternOptions(); 1. 2. 模式选项 示例: QRegularExpressionre("^(\\d\\d)/(\\d\\d)/(\\d\\d\\d\\d)$"); QRegularExpressionMatchmatch=re.match("08/12/1985"); if(match.hasMatch()) { QStringmatched=match.captured(0); QStringday=match.ca...
2>.split(String regex)方法 作用:根据给定正则表达式的匹配拆分此字符串。 split案例展示(按指定的字符串切割) split案例展示(按空格字符串切割) split案例展示(切割IP地址) 3>.replaceAll(String regex,String replacenent)方法 作用:使用给定的replacement替换此字符串所有匹配给定的正则表达式的子字符串。 replaceAll...
Regular expressions are a query string, which contains the general characters and some special characters, special characters can be extended to find the ability of the string, the regular expression in the find and replace the role of strings can not be ignored, it can improve the work ...
I got this function, which works nice in order to replace the non-alphabetical characters in a string.Function CharReplace(ByVal data) Dim Regx As Regex = New Regex("[^a-zA-Z0-9]") Dim match As Match = Regx.Match(data, RegexOptions.IgnoreCase) If TypeName(data) = "String" Then ...
返回一个字符串描述指定的对象,不考虑Object.toString对象。 valueOf方法 返回指定对角的原始值。不考虑Object.valueOf方法。 另外,这个对象继承了对象的watch和unwatch方法 例子: 例1、下述示例脚本使用replace方法来转换串中的单词。在替换的文本中,脚本使用全局 RegExp ...
replace方法：替换字符串中匹配正则表达式的部分。使用”i”标志表示忽略大小写。 提取匹配组：在正则表达式中使用括号进行分组，然后使用”$1”、”$2”等提取匹配的组。四、exec和match方法的差异 exec方法：是RegExp对象的搜索方法，返回一个数组，包含匹配的结果和相关...
regexprep Replace part of text using regular expression. regexptranslate Translate text into regular expression. When calling any of the first three functions, pass the text to be parsed and the regular expression in the first two input arguments. When calling regexprep, pass an additional input...
Aregular expressionis a string that describes a search pattern. It defines one or several substrings to find in a text fragment. Typically, you use regular expressions to search, replace, and validate data in text. They are similar towildcards, however, they allow specifying more vigorous sear...