{public:boolisMatch(strings,stringp) {//分三种情况讨论,这个和正常的字符匹配题区别是有.和*的干扰//判断空情况,但这只是p的空情况,如果下面还要考虑到s空的可能if(p.empty())returns.empty();//p不只有一个字符,且p后面有*,说明p当前的第一个字符可以没有或者出现无限多次//下面return的两个就是分类...
详见:https://leetcode.com/problems/regular-expression-matching/description/方法一:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 class Solution { public: bool isMatch(string s, string p) { if(p.empty()) { return s.empty(); } if...
[链接]三、动态规划版本 {代码...} 二、递归+缓存版本Cache中的map可替换为Boolean[][],初始化大小决定了其花费的时间 {代码...} 一、递归版本 {代码...} 零...
A regular expression can be a literal character or a string. The expression causes the engine to match the text specified exactly. PowerShell # This statement returns true because book contains the string "oo"'book'-match'oo' Character classes ...
\zMatches an integer number. This token is equivalent to[0-9]+or\d+. Sub-expressions You can divide an expression into constituent parts orsub-expressions. To specify a sub-expression use parenthesis, for example,(\s\d+,\d+,d+,)(\d+). The parsing engine detects two sub-expressions ...
options:NSRegularExpressionCaseInsensitive error:nil]; //无符号整型数据接受匹配的数据的数目 NSUIntegernumberofMatch= [regularexpression numberOfMatchesInString:testString options:NSMatchingReportProgress range:NSMakeRange(0, testString.length)]; NSLog(@"===手机号码测试%@===",testString); NSLog(@"11...
1publicclassSolution {2publicbooleanisMatch(String s, String p) {3//Start typing your Java solution below4//DO NOT write main() function5assert(p!=null&& (p.length()==0 || p.charAt(0)!='*'));6if(p.length()==0)returns.length()==0;7if(p.length()==1 || p.charAt(1)!=...
// str :字符串 matchRegex:正则表达式(这个是重点) - (NSMutableArray *)matchLinkWithStr:(NSString *)str withMatchStr:(NSString *)matchRegex; { NSError *error = NULL; NSString *regex = @"#([\\s\\S]*?)#"; NSRegularExpression *reg = [NSRegularExpression regularExpressionWithPattern:ma...
do not use Compiled as it causes increased startup costs and memory overhead. As such, you might want to augment my general purpose RegexMatch function with an additional parameter that specifies whether you want the expression to be compiled; that way, you can decide on a case by case bas...
Regular expression syntax reference Note that JetBrains Rider has a wide range of features forregular expression assistance, such as syntax highlighting and IntelliSense, in your code.