对json字符串与python字符串的不同之处详解

import json

jsonString = '{"arrayOfNums":[{"number":0},{"number":1},{"number":2}],"arrayOfFruits":[{"fruit":"apple"},{"fruit":"banana"},{"fruit":"pear"}]}'

jsonObj = json.loads(jsonString)
print(jsonObj.get("arrayOfNums"))
print(jsonObj.get("arrayOfNums")[0].get('number'))

#json 是一个字符串形式的。 没有get方法
#python 字符串有get方法 便于处理 json里面的数据

import json
from urllib.request import urlopen

def getCountry(ipAddress):

 response = urlopen("http://freegeoip.net/json/"+ipAddress).read().decode('utf-8')

 responseJson = json.loads(response)
 print(responseJson)
 return responseJson.get("country_code")


print(getCountry("50.78.253.58"))

from urllib.request import urlretrieve
from urllib.request import urlopen
from bs4 import BeautifulSoup

html = urlopen('http://www.pythonscraping.com')

bs4 = BeautifulSoup(html,'xml')

imageLocation = bs4.find("a",{"id":"logo"}).find("img")['src']

urlretrieve(imageLocation,"logo.jpg") #urlretrieve 根据下载链接 可以把文件下载下来

#把logo下载在当前目录，名字叫logo.jpg