用类方法和静态方法实现:一个是追加写文件一行内容,一个是读指定行号的内容 #coding=utf-8 class handle_file(object): def __init__(self,file_path): self.file_path=file_path @classmethod def write_file(cls,file_path,content): with open(file_path,'a') as
1.什么是csv文件 The so-called CSV (Comma Separated Values) format is the most common import and export format for spreadsheets and databases. CSV format was used for many years prior to attempts to describe the format in a standardized way in RFC 4180. 2.
本编博客是关于爬取天猫店铺中指定店铺的所有商品基础信息的爬虫,爬虫运行只需要输入相应店铺的域名名称即可,信息将以csv表格的形式保存,可以单店爬取也可以增加一个循环进行同时爬取. 源码展示 首先还是完整代码展示,后面会分解每个函数的意义. # -*- coding: utf-8 -*- import requests import json import csv import random import re from datetime import datetime import time c