match

Python 正则表式

大兔子大兔子 提交于 2019-12-29 21:33:20
1.1 查找文本中的模式 1 import re 2 pattern = 'this' 3 text = 'Does this text match the pattern?' 4 match = re.search(pattern,text) 5 6 s = match.start() 7 e = match.end() 8 9 print(match.re.pattern,match.string,s,e,text[s:e]) 1.2 编译表达式 1 #!/usr/bin/env python 2 # -*- coding:utf-8 -*- 3 import re 4 5 regexes = [re.compile(p) for p in ['this','that']] 6 text = 'Does this text match the pattern?' 7 print("Text: %r\n",text) 8 9 for regex in regexes: 10 print('Seeking "%s" ->' % regex.pattern) 11 if regex.search(text): 12 print('Match') 13 else: 14 print("No match!") 1.3 多重匹配 1 import re 2 text =

python 正则

拥有回忆 提交于 2019-12-29 21:33:02
1、正则表达式是什么 对字符串进行匹配,过滤、搜索、查找的一种方法 python正则对象----字符串 2、应用场景 3、常用匹配规则 实例 # coding:utf8 import re line = "Bananas are more yellow than apples" match_obj = re.match( r'(.*) are (.*?) .*', line) if match_obj: print("get result : ", match_obj.group()) print("match第一个括号内匹配的 : ", match_obj.group(1)) print("match第二个括号内匹配的 : ", match_obj.group(2)) else: print("No match!!") match: 从头开始匹配,一旦匹配不成功便退出 search: 也说从头开始匹配,它是层级关系的匹配,是吧匹配对象分成一个个子字符串来匹配,返回第一个匹配成功对象 效率: match快,侧重点不一样 re.findall对于搜索对象找到所有满足匹配规则条件的子字符串,并返回一个列表 1、返回一个列表,列表中是满条件的所有的子字符串,而不是对象 2、直接把内容返回,不是一个对象 import re s = 'abc_123_hn-96%_78' res_m =

Python之re正则模块

人盡茶涼 提交于 2019-12-29 21:31:55
正则表达式可以帮助我们更好的描述复制的文本格式,可以更好地利用它们对文本数据进行检索、替换、提取和修改操作。 http://www.cnblogs.com/huxi/archive/2010/07/04/1771073.html http://docs.python.org/2.7/library/re.html#module-re 1、 re入门 第一步:先要引入有关正则表达式的包: #-*- coding: utf-8 -*- import re 第二步:使用指定的正则表达式构建一个正则表达式对象,下面正则是用来搜索长度为10的a-z的英文字母 #-*- coding: utf-8 -*- import re regex = re.compile(r'[a-z]{10}') 第三步:根据正则表达式指定数据中检索匹配项,如果匹配IsMatch方法就会返回true #!/usr/bin/env python26 #-*- coding:utf-8 -*- import re regex = re.compile(r'[a-z]{10}') m1 = re.match(regex,'1234567890') m2 = re.match(regex,'abcdefghij') if m1: print "m1 match" if m2: print "m2 match" 2

Matched Range Merge in R

这一生的挚爱 提交于 2019-12-29 09:22:17
问题 I would like to merge/combine two files, so that if an entry in column B of my first file falls into the range of columns B and C in my second file, the output will contain all of the information contained in both files. Like this: file 1 A B rs10 23353 rs100 10000 rs234 54440 file 2 A B C E235 20000 30000 E255 50000 60000 where, because 23353 falls between 20000 and 30000, and 54440 falls between 50000 and 60000 the output file would look like this: rs 23353 E235 20000 30000 rs234 54440 E255

Matched Range Merge in R

倾然丶 夕夏残阳落幕 提交于 2019-12-29 09:22:05
问题 I would like to merge/combine two files, so that if an entry in column B of my first file falls into the range of columns B and C in my second file, the output will contain all of the information contained in both files. Like this: file 1 A B rs10 23353 rs100 10000 rs234 54440 file 2 A B C E235 20000 30000 E255 50000 60000 where, because 23353 falls between 20000 and 30000, and 54440 falls between 50000 and 60000 the output file would look like this: rs 23353 E235 20000 30000 rs234 54440 E255

python 基础 - 4.15 re模块

可紊 提交于 2019-12-29 07:22:42
请从以下文件里取出所有的手机号 姓名 地区 身高 体重 电话 况咏蜜 北京 171 48 13651054608 王心颜 上海 169 46 13813234424 马纤羽 深圳 173 50 13744234523 乔亦菲 广州 172 52 15823423525 罗梦竹 北京 175 49 18623423421 刘诺涵 北京 170 48 18623423765 岳妮妮 深圳 177 54 18835324553 贺婉萱 深圳 174 52 18933434452 叶梓萱 上海 171 49 18042432324 杜姗姗 北京 167 49 13324523342 找到全部电话 f = open("联系方式",'r',encoding="utf-8") phones = [] for line in f: name,city,height,weight,phone = line.split() if phone.startswith('1') and len(phone) == 11: phones.append(phone) print(phones) 运行 ['13651054608', '13813234424', '13744234523', '15823423525', '18623423421', '18623423765', '18835324553',

Javascript Regular Expression not matching

烈酒焚心 提交于 2019-12-29 01:57:50
问题 Morning All I have a javascript regular expression that doesn't work correctly and I'm not sure why. I'm calling the API at https://uptimerobot.com, and getting back a JSON string with details of the monitor statues. This is however wrapped in a function call syntax. Like this: jsonUptimeRobotApi({MASKED-STATUES-OBJ}) As this call is being made from a generic script I was hoping to test the response to see if it had this type of syntax wrapping then parse it accordingly. However I can't seem

ES学习(三)--六种查询

為{幸葍}努か 提交于 2019-12-28 19:13:15
一、query string search   A、搜索全部商品     GET /ecommerce/_search   B、 查询商品名为牙膏,价格降序排列     GET /ecommerce/_search?q=name:yagao&sort=price:desc 二、 query DSL   A、 查询所有商品     GET /ecommerce/_search     {       "query": {         "match_all": {}       }     }   B、 查询所有名称包含yagao的商品,同时按照价格降序排列     GET /ecommerce/_search     {       "query": {         "match": {           "name": "yagao"         }       },       "sort": [         {           "price": {             "order": "desc"           }         }       ]     } 三、 分页   A、GET /ecommerce/_search     {       "query": {         "match_all": {}       },    

Search longest pattern in byte array in C#

北城以北 提交于 2019-12-28 05:55:07
问题 I need to write effective and quick method to search byte array for given pattern. I write it this way, what do you think , how to improve? And it has one bug, it cannot return match with length 1. public static bool SearchByteByByte(byte[] bytes, byte[] pattern) { bool found = false; int matchedBytes = 0; for (int i = 0; i < bytes.Length; i++) { if (pattern[0] == bytes[i] && bytes.Length - i >= pattern.Length) { for (int j = 1; j < pattern.Length; j++) { if (bytes[i + j] == pattern[j]) {

2019 SDN上机第6次作业

吃可爱长大的小学妹 提交于 2019-12-28 01:05:56
1.实验拓扑 实验拓扑 使用Python脚本完成拓扑搭建,并连接ryu控制器 代码如下 from mininet.topo import Topo class Mytopo(Topo): def __init__(self): Topo.__init__(self) s=[] for i in range(2): sw = self.addSwitch('s{}'.format(i+1)) s.append(sw) self.addLink(s[0],s[1]) count=1 for two in s: for i in range(3): host = self.addHost('h{}'.format(count)) self.addLink(two,host) count += 1 topos = {'mytopo': (lambda:Mytopo())} 拓扑搭建成功 使用pingall命令测试连通性 输入命令连接ryu控制器 ryu-manager ofctl_rest.py 输入net,查看各主机与交换机之间的端口情况,方便确定之后脚本中匹配项的值 2.使用Ryu的REST API下发流表实现和第2次实验同样的VLAN s1脚本 #端口号1发来数据 curl -X POST -d '{ "dpid": 1, "priority":1, "match":{ "in