python re.I compile search

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python re.I compile search

import restring = "The quick brown fox jumps over the lazy dog."a_list = string.split()pattern = re.compile(r'THE',re.I) count = 0 for word in a_list: if pattern.search(word): count +=1print(count) 替换方式1 string_to_find = r"the"pattern…

[LeetCode]题解（python）：081 - Search in Rotated Sorted Array II

题目来源 https://leetcode.com/problems/search-in-rotated-sorted-array-ii/ Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed? Would this affect the run-time complexity? How and why? Write a function to determine if a given…

python JSON API duckduckgo search engine 使用duckduckgo API 尝试搜索引擎

The duckduckgo.com's search engine is very neat to use. Acutally it has many things to do with other things since its API is also very neat. We can find many API which are free to use on different platforms. Here we got one for JavaScript on github.…

python语法re.compile模块介绍

1. re模块是正则表达式模块,re模块中包含一个重要函数是compile(pattern [, flags]) ,该函数根据包含的正则表达式的字符串创建模式对象.可以实现更有效率的匹配. import re msgidRegex = re.compile(r',(\d)+,') mo = msgidRegex.search(rec_data) return mo.group() 看下rec_data的数据 rec_data="+MIPLOBSERVE:0,68220,1,3303,0,-1&q…

Learning Python 008 正则表达式-003 search()方法

Python 正则表达式 - search()方法 findall()方法在找到第一个匹配之后,还会继续找下去,findall吗,就是找到所有的匹配的意思.如果你只是想找到第一个匹配的信息后,就不在继续找下去了,那么就使用search()方法,这个方法找到第一个匹配之后,就停止寻找. 所有如果你只是想找到第一个匹配信息,使用search()方法可以提高搜索效率. search()函数的使用 # -?- coding: utf-8 -?- import re secret_code = 'dsdx…

Python之exec()/compile()方法使用

# Python内置函数exec()可以用来执行Python代码 # 或内置函数compile()编译的代码对象 # exec程序中可写入python语法格式的代码,并直接输出. exec('print("Hello World!")') # compile(source, filename, mode[, flags[, dont_inherit]]) # 中文说明:将source编译为代码或者AST对象.代码对象能够通过exec语句来执行或者eval()进行求值. # 参数sour…

[LeetCode&Python] Problem 704. Binary Search

Given a sorted (in ascending order) integer array nums of n elements and a target value, write a function to search target in nums. If target exists, then return its index, otherwise return -1. Example 1: Input: nums = [-1,0,3,5,9,12], target = 9 Out…