{stringstr0 ="|456|";stringstr1 ="|444|";stringstr2 ="|111|222|333|444|555|666|777|888|999|000|";//---//String.Contains方法if(str2.Contains(str0)) Console.WriteLine("String.Contains->true");elseConsole.WriteLine("String.Contains->false");if(str2.Contains(str1)) Console.WriteLi...
字符串中判断存在的几种模式和效率(string.contains、string.IndexOf、Regex.Match),stringregex 通常情况下,我们判断一个字符串中是否存在某值常常会用string.contains,其实判断一个字符串中存在某值的方法有很多种,最常用的就是前述所说的string.contains,相对来说比较常用的还有string.IndexOf和Regex.Match。直接上...
Console.WriteLine("String.Contains->true");elseConsole.WriteLine("String.Contains->false");if(str2.Contains(str1)) Console.WriteLine("String.Contains->true");elseConsole.WriteLine("String.Contains->false");//---//String.IndexOf方法int val1 = str2.IndexOf(str0);//不存在返回-1 Console.Wr...
# 使用re.sub方法进行替换 result = re.sub(pattern, "", string) # 输出结果 print(result) 该例子中,特定字符的模式是[!@#$],表示匹配出现在方括号中的任意一个字符。使用re.sub方法将匹配到的特定字符替换为空字符串,最后输出结果为:"Hello This is a test string, and it contains special charac...
\sReturns a match where the string contains a white space character"\s"Try it » \SReturns a match where the string DOES NOT contain a white space character"\S"Try it » \wReturns a match where the string contains any word characters (characters from a to Z, digits from 0-9, an...
choices {a1, a2, b1, b2}; 方法一： public static boolean contains(String test) { for (...
for (int i = 0; i < trials; i++) { bool isMatch = nulla.IsMatch(message); } I got: regex = 00:00:00.6902234 contains = 00:00:00.8815885 (during 10 trials it was consistently faster) Lesson must be that if you're searching for the same thing a lot, the dynamically compiled st...
matchResult.forEach { println(it.value) } 打印结果 2345 6789 012 2345 还有一个典型的案例,就是富文本标签的截取,这个在上篇文章举例过了,大家可以看上篇文章。 3、containsMatchIn 用于判断是否包含某个字符,和String的使用方式类似: valcontent ="二流小码农"valregex = Regex("农")valregex2 = Regex(...
3、containsMatchIn 用于判断是否包含某个字符,和String的使用方式类似: valcontent="二流小码农"valregex=Regex("农")valregex2=Regex("中")valisContains=regex.containsMatchIn(content)valisContains2=regex2.containsMatchIn(content)println(isContains)println(isContains2) ...
/// /// <returns> /// A C# DataFrame contains the output dataset. /// </returns> public override DataFrame Execute(DataFrame input, Dictionary<string, dynamic> sqlParams){ // Drop NULL values and sort by id // input = input.DropNulls().OrderBy("id"); // Create empty...