用python的requests第三方模块抓取王者荣耀所有英雄的皮肤实例

# -*- coding: utf-8 -*-
"""
Created on Wed Dec 13 13:49:52 2017
@author:KillerTwo
"""
import requests
import os
hero_list_url = 'http://pvp.qq.com/web201605/js/herolist.json'
hero_skin_root_url = 'http://game.gtimg.cn/images/yxzj/img201606/skin/hero-info/'
skin_base_dir = 'C:\\Users\\lwt27\\Pictures\\image\\heroskin\\'

def get_ename(hero_json):#传入获取到的python对象，如hero_list_json
 '''获取英雄名称对应英雄编号的一个字典,例如{小乔:106,...}'''
 cname_ename = {}
 for hero in hero_json:
 cname_ename[hero['cname']] = hero['ename']
 return cname_ename
def get_skin_name(hero_json): #传入从网页获取到的json转换为python字典的对象
 '''获取英雄名称对应的皮肤的所有皮肤名称的字典,例如
 {'小乔':'恋之微风|万圣前夜|天鹅之梦|纯白花嫁|缤纷独角兽',...}'''
 cname_skin_name = {}
 for hero in hero_json:
 cname_skin_name[hero['cname']] = hero['skin_name']
 return cname_skin_name
def get_hero_skin_count(cname_skin_name): #传入英雄名称对应皮肤名称的字典
 '''获取每个英雄对应的皮肤的个数,例如{'小乔':5,...}'''
 cname_skin_count = {} 
 for item in cname_skin_name.items():
 cname_skin_count[item[0]] = len(item[1].split('|'))
 return cname_skin_count
def get_skin_name_url(skin_base_rul,cname_skin_count,cname_ename):
 #传入皮肤根地址和名称对应皮肤数量的字典和名称对应编号的字典
 '''返回英雄名称对应的所有皮肤的url地址列表的字典,例如{小乔:[skin_url1,skin_url2],...}'''
 cname_url_list = {}
 for cname,count in cname_skin_count.items():
 #print(cname)
 #print(count)
 #print(skin_base_rul)
 #print(cname_ename[cname])
 base_url = skin_base_rul+str(cname_ename[cname])+'/'+str(cname_ename[cname])+'-bigskin-'
 #print(base_url)
 skin_url_list = [str(base_url)+str(num)+'.jpg' for num in range(1,count+1)]
 cname_url_list[cname] = skin_url_list
 return cname_url_list
#print()
d = get_skin_name_url(hero_skin_root_url,get_hero_skin_count(get_skin_name(hero_list_json)),get_ename(hero_list_json))
#print(d)
def get_cname_skin_name(cname_skin_name):#传入名称对应皮肤名称字符串的字典
 cname_skin_name_dict = {}  #返回名称对应【皮肤名称的列表】的字典
 for cname,skin_name_list in cname_skin_name.items():
 skin_list = [name for name in skin_name_list.split('|')]
 cname_skin_name_dict[cname] = skin_list
 return cname_skin_name_dict
 
#s = get_skin_name(hero_list_json)
#print(s)
#f = get_cname_skin_name(s)
#print(f)
def get_hero_skin(cname_url_list,cname_skin_name):#传入名称对应【皮肤名称列表】的字典和名称对应皮肤url列表的字典
 # """获取每个英雄的图片"""
 for cname,skin_url in cname_url_list.items():
 
 if mkdir(skin_base_dir+cname):#创建指定目录
  os.chdir(skin_base_dir+cname) #进入到创建的目录
  
  for i in range(len(skin_url)):
  file_name = cname_skin_name[cname][i]+'.jpg'
  r = requests.get(skin_url[i])
  with open(file_name,'wb') as f:
   f.write(r.content)
#创建目录
def mkdir(path):
 # 引入模块
 import os
 # 去除首位空格
 path=path.strip()
 # 去除尾部 \ 符号
 path=path.rstrip("\\")
 # 判断路径是否存在
 # 存在 True
 # 不存在 False
 isExists=os.path.exists(path)
 # 判断结果
 if not isExists:
 # 如果不存在则创建目录
 # 创建目录操作函数
 os.makedirs(path)
 print(path+' 创建成功')
 return True
 else:
 # 如果目录存在则不创建，并提示目录已存在
 print(path+' 目录已存在')
 return False
 return 
if __name__ == '__main__':
 
 hero_list_body = requests.get(hero_list_url) #请求英雄列表
 hero_list_json = hero_list_body.json() #将英雄列表的获取的json数据转换为python对象
 cname_ename = {} #英雄名称对应英雄编号的字典
 cname__skin_name = {} #英雄名称对应皮肤名称字符串的字典
 cname_skin_count = {} #英雄名称对应皮肤数量的字典
 
 cname_skin_name_str_list = get_skin_name(hero_list_json)
 cname_skin_name_list = get_cname_skin_name(cname_skin_name_str_list)
 cname_skin_count = get_hero_skin_count(cname_skin_name_str_list)
 cname_ename = get_ename(hero_list_json)
 cnam_skin_url_list = get_skin_name_url(hero_skin_root_url,cname_skin_count,cname_ename)
 get_hero_skin(cnam_skin_url_list,cname_skin_name_list)