用Python爬取英雄联盟英雄皮肤壁纸

#!/usr/bin/python# -*- coding: utf-8 -*- # author: KK.  time:2018/3/20
import requestsimport reimport os

def get_json(url):    r = requests.get(url)    json_file = r.content.decode('gbk')    return json_file

def get_dict_of_champion_list(champion_list):    str1 = r'champion={"keys":'    str2 = r',"data":{"Aatrox":'    champion_list_str = str(champion_list).split(str1)[1].split(str2)[0]    champion_list_dict = eval(champion_list_str)    return champion_list_dict

def get_dict_of_champion(champion_json):    str1 = r'"skins":['    str2 = r'],"info"'    champion0 = str(champion_json).split(str1)[1].split(str2)[0]    champion_id = re.findall(r'{(.*?),"num"', champion0)    champion_name = re.findall(r'"num":.*?,(.*?),"chromas"', champion0)    champion = []    for m in range(len(champion_id)):        champion_str = '{' + champion_id[m] + ',' + champion_name[m] + '}'        champion_dict = eval(champion_str)        champion.append(champion_dict)    return champion

def get_champion_default_name(champion_json):    str3 = '={"data":'    str4 = ',"tags'    name_str = str(champion_json).split(str3)[1].split(str4)[0] + '}'    name_dict = eval(name_str)    default_name = name_dict['name'] + ' ' + name_dict['title']    return default_name

def download(champion_dict, default_name):    for m in range(len(champion_dict)):        img_id = champion_dict[m]['id']        name = champion_dict[m]['name'].replace('default', default_name)        name = name.replace("\\", "")      #去除特殊字符        name = name.replace("/", "")        print (name)        img_url = 'http://ossweb-img.qq.com/images/lol/web201310/skin/big{}.jpg'.format(img_id)        r = requests.get(img_url)        img = r.content        with open('{}.jpg'.format(name), 'wb') as f:            f.write(img)            print('已下载图片：{}.jgp'.format(name))

def run(url):    champion_list0 = get_json(url)    # 获取包含所有英雄名称的js文件    champion_list = get_dict_of_champion_list(champion_list0)    # 把获取到的文件处理成想要的格式
    # os.path.join(r'/输入你想要保存到的路径地址/')    # os.chdir(r'/输入你想要保存到的路径地址/')    # 建立lol文件夹，并且在将工作目录转换到此文件夹
    for value in champion_list.values():        champion_json_url = 'http://lol.qq.com/biz/hero/{}.js'.format(value)        champion_json = get_json(champion_json_url)        champion_dict = get_dict_of_champion(champion_json)        default_name = get_champion_default_name(champion_json)        download(champion_dict, default_name)    print('下载完成')

if __name__ == '__main__':    champion_list_json_url = 'http://lol.qq.com/biz/hero/champion.js'    run(champion_list_json_url)