突然想研究一下Python的爬虫功能，简单的做一下笔记：
安装依赖库
库的相关说明：https://urllib3.readthedocs.io/en/latest/
示例代码：
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| import urllib3
import json
http = urllib3.PoolManager()
r = http.request('GET', 'https://mod.3dmgame.com/mod/API/147160')
print(r.data)
print(json.loads(r.data.decode('utf-8')))
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实例-获取Script Hook RDR2的更新状态
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import urllib3
import re
http = urllib3.PoolManager()
r = http.request('GET','http://www.dev-c.com/rdr2/scripthookrdr2')
pattern = re.compile('<tr>.*?<th>Released</th>.*?<td>(.*?)</td>.*?'+
'</tr>.*?<tr>.*?<th>Version</th>.*?<td>(.*?)</td>.*?</tr>.*?'+
'<tr>.*?<th>Supported patches</th>.*?<td>(.*?)</td>.*?</tr>',re.S)
items = re.findall(pattern,r.data.decode('utf-8'))
print(items)
for item in items:
Released = item[0]
Version = item[1]
Supported = item[2]
print("更新时间："+Released+",\n版本："+Version+",\n支持版本："+Supported)
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输出结果：
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| [('15 Jan 2020', 'v1.0.1232.17', '1.0.1207.58/1232.17 and above')]
更新时间：15 Jan 2020,
版本：v1.0.1232.17,
支持版本：1.0.1207.58/1232.17 and above
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