dianrao0601-优快云博客

转载爬虫实践-爬取简书网7日热门信息

jianshuwangremen.py:from lxml import etreeimport requestsimport pymongoimport reimport jsonfrom multiprocessing import Pool# 连接数据库client = pymongo.MongoClient('localhost', 27017)mydb = client['...

2017-12-12 18:33:00 239

转载爬虫实践-爬取简书网用户动态信息

jianshuwanguser.py:import requestsfrom lxml import etreeimport pymongoclient = pymongo.MongoClient('localhost', 27017)mydb = client['mydb']timeline = mydb['timeline']def get_time_info(url, pa...

2017-12-12 11:17:00 230

转载爬虫实践-爬取转转网二手市场商品信息

channel_extract.py:import requestsfrom lxml import etree# 请求URLstart_url = 'http://cs.58.com/sale.shtml'# 拼接的部分URLurl_host = 'http://cs.58.com'# 获取商品类目URLdef get_channel_urls(url): html = re...

2017-12-11 15:15:00 668

转载爬虫实践-爬取简书网热评文章

jianshuwangarticle.py:import requestsfrom lxml import etreeimport pymongofrom multiprocessing import Pool# 连接数据库client = pymongo.MongoClient('localhost', 27017)mydb = client['mydb']jianshu_shou...

2017-12-11 10:44:00 264

转载多进程爬虫学习-性能对比

performancecomparation.py:import requestsimport reimport timefrom multiprocessing import Poolheaders = { 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 ' ...

2017-12-10 23:43:00 124

转载爬虫实践-爬取豆瓣音乐TOP250的数据

doubanyinyue.py:import requestsfrom lxml import etreeimport reimport pymongoimport timeclient = pymongo.MongoClient('localhost', 27017)mydb = client['mydb']musictop = mydb['musictop']headers = ...

2017-12-10 23:22:00 603

转载爬虫API学习-百度地图API调用

转载于:https://www.cnblogs.com/silverbulletcy/p/8010749.html

2017-12-09 10:38:00 235

转载爬虫API学习-斯必克API调用

转载于:https://www.cnblogs.com/silverbulletcy/p/8006902.html

2017-12-08 19:48:00 638

转载爬虫实践-爬取起点中文网小说信息

qidian.py:import xlwtimport requestsfrom lxml import etreeimport timeall_info_list = []def get_info(url): html = requests.get(url) selector = etree.HTML(html.text) infos = selector.xpa...

2017-12-08 19:36:00 654

转载爬虫实践-爬取豆瓣网图书TOP250的数据

doubantop250.py:# 导入相应的库文件from lxml import etreeimport requestsimport csv# 创建csvfp = open('C://Users/Administrator//Desktop/doubanbook.csv', 'wt', newline='', encoding='utf-8')writer = csv.writ...

2017-12-08 16:00:00 585

转载爬虫学习-正则表达式、BeautifulSoup、Lxml性能对比

QiushibaikeComparation.py:# 导入相应的库文件import requestsimport refrom bs4 import BeautifulSoupfrom lxml import etreeimport time# 加入请求头headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64...

2017-12-08 15:14:00 364

转载爬虫实践-爬取糗事百科网段子信息

qiushibaike.py:# 导入相应的库文件import requestsimport re# 加入请求头headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 ' '(KHTML, like Gecko) Chrome/53.0....

2017-12-08 14:13:00 289

转载 leetcode019-Roman to Integer

Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.Soulution：int romanToInt(char* s) { 　　int num=0,temp=0; 　　while(*s){ ...

2017-12-06 14:40:00 87

转载 Win8安装tensorflow

转载于:https://www.cnblogs.com/silverbulletcy/p/7990484.html

2017-12-06 01:28:00 100

转载 py3.5-json模块练习

world_population.py:import jsonimport pygal.maps.worldfrom pygal.style import RotateStylefrom country_codes import get_country_code# 将数据加载到一个列表中filename = 'popu...

2017-12-05 23:45:00 118

转载 py3.5-csv模块练习

highs_lows.py:import csvfrom datetime import datetimefrom matplotlib import pyplot as plt# 从文件中获取日期、最高气温和最低气温filename = 'sitka_weather_2014.csv'with open(filename) as f: reader = csv.reader(...

2017-12-05 20:00:00 96

转载 leetcode009-Palindrome Number

Determine whether an integer is a palindrome. Do this without extra space.Solution:bool isPalindrome(int x) { 　　if(x<0) 　　　　return false; 　　long answer=0; 　　int temp=x; 　　while(temp!=0...

2017-12-05 17:28:00 99

转载 py3.5-pygal练习

die.py:from random import randintclass Die(): """表示一个骰子的类""" def __init__(self, num_sides=6): """骰子默认为6面""" self.num_sides = num_sides def roll(self): """...

2017-12-05 17:21:00 120

转载 py3.5-matplotlib库练习02随机漫步

random_walk.py:from random import choiceclass RandomWalk(): """一个生成随机漫步数据的类""" def __init__(self, num_points=5000): """初始化随机漫步的属性""" self.num_points = num_points # 所有...

2017-12-05 15:24:00 123

转载 py3.5-matplotlib库练习01

转载于:https://www.cnblogs.com/silverbulletcy/p/7986899.html

2017-12-05 14:46:00 115

转载爬虫实践-爬取酷狗TOP500数据

源代码：import requestsfrom bs4 import BeautifulSoupimport timeheaders = { 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 ' ' (KHTML, like Gecko) Chro...

2017-12-04 22:41:00 230

转载 Machine Learning课堂笔记之Logistic Regression

转载于:https://www.cnblogs.com/silverbulletcy/p/7977745.html

2017-12-04 16:36:00 78

转载 Machine Learning课堂笔记之Computing Parameters Analytically

转载于:https://www.cnblogs.com/silverbulletcy/p/7977615.html

2017-12-04 16:19:00 183

转载 Machine Learning课堂笔记之Multivariate Linear Regression

转载于:https://www.cnblogs.com/silverbulletcy/p/7977463.html

2017-12-04 15:58:00 161

转载 Machine Learning课堂笔记之Environment Setup Instructions

转载于:https://www.cnblogs.com/silverbulletcy/p/7977387.html

2017-12-04 15:47:00 153

转载 leetcode007-Reverse Integer

Given a 32-bit signed integer, reverse digits of an integer.Example 1:Input: 123Output: 321Example 2:Input: -123Output: -321Example 3:Input: 120Output: 21Note:...

2017-12-01 23:28:00 96

转载 leetcode001-Two Sum

Given an array of integers, returnindicesof the two numbers such that they add up to a specific target.You may assume that each input would haveexactlyone solution, and you may not use the...

2017-12-01 17:16:00 72

转载爬虫BeautifulSoup库学习-小猪短租网

打印网页源码：打印一个价格标签：打印所有价格标签：转载于:https://www.cnblogs.com/silverbulletcy/p/7890448.html

2017-11-24 14:24:00 151

转载爬虫Requests库学习-小猪短租网

转载于:https://www.cnblogs.com/silverbulletcy/p/7889817.html

2017-11-24 11:35:00 145

转载【转】如何在Windows环境下安装Linux系统虚拟机

构建Linux环境首先登陆Ubuntu的官网，选择相应版本的Ubuntu软件下载，这里小编推荐的是Ubuntu Kylin最新优麒麟桌面版本（32位和64位），两个版本的文件都有1.6GB，把文件下载到电脑（一般不推荐下载到C盘）。Ubuntu镜像文件下载完成后，还需要一个虚拟机来运行，所以我们还需要下载一个叫VMwareWorkst...

2017-11-19 21:41:00 140

转载 Machine Learning课堂笔记之Linear Algebra Review

转载于:https://www.cnblogs.com/silverbulletcy/p/7862241.html

2017-11-19 21:35:00 151

转载 Machine Learning课堂笔记之Model and Cost Function

转载于:https://www.cnblogs.com/silverbulletcy/p/7858976.html

2017-11-19 04:27:00 117

转载 Machine Learning课堂笔记之Introduction

转载于:https://www.cnblogs.com/silverbulletcy/p/7858975.html

2017-11-19 04:17:00 83

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