ereg=/^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/;//测试出生日期的合法性}if(ereg.test(idcard)) return Errors[0];elsereturn Errors[...
正则表达式(regular expression)就是用一个“字符串”来描述一个特征,然后去验证另一个“字符串”是否符合这个特征。比如 表达式“ab+” 描述的特征是“一个 'a' 和 任意个 'b' ”,那么 'ab', 'abb', 'abbbbbbbbbb' 都符合这个特征。 正则表达式可以用来:(1)验证字符串是否符合指定特征,比如验证是否是合...
System.out.println("验证成功"); } else { System.out.println("验证失败"); } } }
If an expression has nested parentheses, MATLAB captures tokens that correspond to the outermost set of parentheses. For example, given the search pattern '(and(y|rew))', MATLAB creates a token for 'andrew' but not for 'y' or 'rew'. For more information, see Tokens in Regular Expression...
:space:Any whitespace character. Same as \s. :print:Any alphanumeric, punctuation, or space character. :punct:Any punctuation character :graph:Any alphanumeric or punctuation character. :cntrl:Any character not part of the character classes [:upper:], [:lower:], [:alpha:], [:digit:]...
Regular expression 实例 Regular expression是python的一个重要应用,对于pattern matching很重要,用好了往往可以事半功倍。这里是罗列一些基本的用法: importre#分组print("String: 'Work Number is 416-123-6868. Home number is 000-123-8888.'")phone_regex=re.compile(r"(\d\d\d)-(\d\d\d-\d\d\d...
[NSRegularExpression regularExpressionWithPattern:@"^1[3-9]([:digit:]{9})$"options:NSRegularExpressionCaseInsensitive error:&error];NSTextCheckingResult*result=[regex firstMatchInString:phoneNum options:0range:NSMakeRange(0,[phoneNum length])];if(result){NSLog(@"匹配成功");}else{NSLog(@"匹配...
Pattern Class - Defines a pattern (to be used in a search) Matcher Class - Used to search for the pattern PatternSyntaxException Class - Indicates syntax error in a regular expression patternExampleGet your own Java Server Find out if there are any occurrences of the word "w3schools" in a...
*/ public JGrep(String patt) throws PatternSyntaxException { if (debug) { System.err.printf("JGrep.JGrep(%s)%n", patt); } // compile the regular expression int caseMode = ignoreCase ? Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE : 0; pattern = Pattern.compile(patt, caseMode); matc...
foreach (string word in words) { if (rx.IsMatch(word)) { Console.WriteLine($"{word} does match"); } else { Console.WriteLine($"{word} does not match"); } } We go through the list of words. The IsMatch method returns true if the word matches the regular expression. ...