ABS寄予清风NotFound
Lv.1
一个人
获赞:48收藏:17浏览:428作品收藏:14
签名:我正在写作业……
Lv.1
一个人
签名:我正在写作业……
在 【代码岛3.0内测第8弹-地图编辑！！】限时体验！ 中回复
吉吉瞄,我想参加代码岛3.0的创作,我想和大家一起,建设起一个好地图,让大家自在得玩可以吗?谢谢
2019-12-14T20:43:40 点赞:0
在 【0成本建网站】【第一期】注册账号 中回复
为什么360不行?说Your browser did something unexpected. Please contact us if the problem persists.你的浏览器做了一些意想不到的事情。如果问题仍然存在，请与我们联系???
2019-12-14T20:57:29 点赞:0
在 【代码岛3.0内测第8弹-地图编辑！！】限时体验！ 中回复
1. 原因
我想只做一个好的作品，让大家玩。
2. 链接
https://box3.codemao.cn/content/2/1989
吉吉喵，我想参加。
2019-12-23T17:33:35 点赞:1
在 【Python作品分享】高级爬虫【作品秀】 中回复
import re
import urlparse
import urllib2
import time
from datetime import datetime
import robotparser
import Queue
from scrape_callback3 import ScrapeCallback
def link_crawler(seed_url, link_regex=None, delay=5, max_depth=-1, max_urls=-1, headers=None, user_agent='wswp',
proxy=None, num_retries=1, scrape_callback=None):
"""Crawl from the given seed URL following links matched by link_regex
"""
# the queue of URL's that still need to be crawled
crawl_queue = [seed_url]
# the URL's that have been seen and at what depth
seen = {seed_url: 0}
# track how many URL's have been downloaded
num_urls = 0
rp = get_robots(seed_url)
throttle = Throttle(delay)
headers = headers or {}
if user_agent:
headers['User-agent'] = user_agent
while crawl_queue:
url = crawl_queue.pop()
depth = seen[url]
# check url passes robots.txt restrictions
if rp.can_fetch(user_agent, url):
throttle.wait(url)
h喵l = download(url, headers, proxy=proxy, num_retries=num_retries)
links = []
if scrape_callback:
links.extend(scrape_callback(url, h喵l) or [])
if depth != max_depth:
# can still crawl further
if link_regex:
# filter for links matching our regular expression
links.extend(link for link in get_links(h喵l) if re.match(link_regex, link))
for link in links:
link = normalize(seed_url, link)
# check whether already crawled this link
if link not in seen:
seen[link] = depth + 1
# check link is within same domain
if same_domain(seed_url, link):
# success! add this new link to queue
crawl_queue.append(link)
# check whether have reached downloaded maximum
num_urls += 1
if num_urls == max_urls:
break
else:
print 'Blocked by robots.txt:', url
class Throttle:
"""Throttle downloading by sleeping between requests to same domain
"""
def __init__(self, delay):
# amount of delay between downloads for each domain
self.delay = delay
# timestamp of when a domain was last accessed
self.domains = {}
def wait(self, url):
"""Delay if have accessed this domain recently
"""
domain = urlparse.urlsplit(url).netloc
last_accessed = self.domains.get(domain)
if self.delay > 0 and last_accessed is not None:
sleep_secs = self.delay - (datetime.now() - last_accessed).seconds
if sleep_secs > 0:
time.sleep(sleep_secs)
self.domains[domain] = datetime.now()
def download(url, headers, proxy, num_retries, data=None):
print 'Downloading:', url
request = urllib2.Request(url, data, headers)
opener = urllib2.build_opener()
if proxy:
proxy_params = {urlparse.urlparse(url).scheme: proxy}
opener.add_handler(urllib2.ProxyHandler(proxy_params))
try:
response = opener.open(request)
h喵l = response.read()
code = response.code
except urllib2.URLError as e:
print 'Download error:', e.reason
h喵l = ''
if hasattr(e, 'code'):
code = e.code
if num_retries > 0 and 500 <= code < 600:
# retry 5XX HTTP errors
h喵l = download(url, headers, proxy, num_retries - 1, data)
else:
code = None
return h喵l
def normalize(seed_url, link):
"""Normalize this URL by removing hash and adding domain
"""
link, _ = urlparse.urldefrag(link) # remove hash to avoid duplicates
return urlparse.ur喵oin(seed_url, link)
def same_domain(url1, url2):
"""Return True if both URL's belong to same domain
"""
return urlparse.urlparse(url1).netloc == urlparse.urlparse(url2).netloc
def get_robots(url):
"""Initialize robots parser for this domain
"""
rp = robotparser.RobotFileParser()
rp.set_url(urlparse.ur喵oin(url, '/robots.txt'))
rp.read()
return rp
def get_links(h喵l):
"""Return a list of links from h喵l
"""
# a regular expression to extract all links from the webpage
webpage_regex = re.compile(']+href=["\'](.*?)["\']', re.IGNORECASE)
# list of all links from the webpage
return webpage_regex.findall(h喵l)
if __name__ == '__main__':
# link_crawler('http://example.webscraping.com', '/(index|view)', delay=0, num_retries=1, user_agent='BadCrawler')
# link_crawler('http://example.webscraping.com', '/(index|view)', delay=0, num_retries=1, max_depth=1,
# user_agent='GoodCrawler')
link_crawler('http://fund.eas喵oney.com',r'/fund.h喵l#os_0;isall_0;ft_;pt_1',max_depth=-1,scrape_callback=ScrapeCallback
2020-01-17T11:57:52 点赞:0
在 【代码岛3.0内测第9弹 - 编程！！】首批编程大师招募！ 中回复
吉吉喵，为什么没有坐标轴？就是我在创作的时候，想搞一个传送门，但是我的xyz坐标都没搞清楚。
2020-01-17T15:22:01 点赞:0
在 【代码岛3.0编辑器更新！】添加999个实体，居然很流畅？ 中回复
嘤嘤嘤～吉吉喵，我用ipad有bug！
我想飞行，结果居然……飞的不知道哪里去了！而且跳跃按键也不见了！！！
2020-02-15T08:02:22 点赞:1
在 【代码岛3.0科普贴】怎么将地面全部变成水？ 中回复
for (let i = 0; i < 128; i++) {
for (let j = 6; j < 9; j++) {
for (let k = 0; k < 128; k++) {
voxels.setVoxel(i, j, k, 'water')
}
}
}吉吉喵,isThis?
2020-02-20T17:38:43 点赞:1