this 和 $(this)的区别 以及循环拿到所有被选中的input

Posted 2020-10-12 风起了，风停了

将数据存储到CSV文件

import urllib.request
import re
import csv

url = \'https://maoyan.com/board/4?offset=10\'
headers = {\'User-Agent\': \'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (Khtml, like Gecko) Chrome/68.0.3440.106 Safari/537.36\'
}

# 获取页面
req = urllib.request.Request(url, headers=headers)
res = urllib.request.urlopen(req)
html = res.read().decode(\'utf-8\')

# 解析页面
p = re.compile(\'<div class="movie-item-info">.*?title="(.*?)".*?class="star">(.*?)</p>.*?releasetime">(.*?)</p>\',re.S)
rList = p.findall(html)

# 存储到CSV
for r in rList:
    r = [r[0].strip(),r[1].strip(),r[2].strip()]
    with open(\'my1.csv\',\'a\',newline="") as f:
        # 创建写入对象
        writer = csv.writer(f)
        writer.writerow(r)

 

将数据存储到mysql中

import urllib.request
import re
import pymysql
import warnings

warnings.filterwarnings("ignore")

url = \'https://maoyan.com/board/4?offset=10\'
headers = {\'User-Agent\': \'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36\'
           }

# 创建数据库连接对象
db = pymysql.connect(
    "localhost",
    "root",
    "123456",
    "spiderdb",
    charset="utf8")
# 游标对象
cursor = db.cursor()

# 获取页面
req = urllib.request.Request(url, headers=headers)
res = urllib.request.urlopen(req)
html = res.read().decode(\'utf-8\')

# 解析页面
p = re.compile(
    \'<div class="movie-item-info">.*?title="(.*?)".*?class="star">(.*?)</p>.*?releasetime">(.*?)</p>\', re.S)
rList = p.findall(html)
# 存储到CSV
ins = \'insert into film(\\
          name,star,releasetime) \\
          values(%s,%s,%s)\'
for r in rList:
    L = [r[0].strip(),
         r[1].strip(),
         r[2].strip()[5:15]
         ]
    cursor.execute(ins,L)
    db.commit()

 

将数据存储到pymongo中

import urllib.request
import re
import pymongo

url = \'https://maoyan.com/board/4?offset=10\'
headers = {\'User-Agent\': \'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36\'
           }

# 创建连接对象
conn = pymongo.MongoClient("127.0.0.1", 27017)
db = conn["spiderdb"]
myset = db["film"]

# 获取页面
req = urllib.request.Request(url, headers=headers)
res = urllib.request.urlopen(req)
html = res.read().decode(\'utf-8\')

# 解析页面
p = re.compile(
    \'<div class="movie-item-info">.*?title="(.*?)".*?class="star">(.*?)</p>.*?releasetime">(.*?)</p>\', re.S)
rList = p.findall(html)

# 存储到pymongo
for r in rList:
    d = {
        "name": r[0].strip(),
        "star": r[1].strip(),
        "releasetime": r[2].strip()
    }
    myset.insert_one(d)