使用Python解析JSON数据

使用Python解析百度API返回的JSON格式的数据

# coding:utf-8
# !/usr/bin/env python

import matplotlib.pyplot as plt
from numpy import *
import sys, urllib, urllib2, json
import fun

if __name__ == \'__main__\':
	dataMat,labelMat = fun.loadDataSet("code.txt")
	print dataMat[0]
	url = \'http://apis.baidu.com/apistore/stockservice/usastock?stockid=CFC-B&list=1\'
	req = urllib2.Request(url)
	
	req.add_header("apikey", "你自己的apikey")
	resp = urllib2.urlopen(req)
	content = resp.read()
	s = json.loads(content)

	for i in s.keys():
		if i == \'errNum\':
			print \'错误码：\',s[i]
		elif i == \'errMsg\':
			print \'错误信息：\',s[i]
		else:
			for j in s[i].keys():
				if j == \'stockinfo\':
					print "返回数据:",j,":",str(s[i][j]).replace(\'u\\'\',\'\\'\').decode("unicode-escape")+\'\n\'
				elif j == \'market\':
					for k in s[i][j].keys():
						print k,":",str(s[i][j][k]).replace(\'u\\'\',\'\\'\').decode("unicode-escape")+\'\n\'
				#print "返回数据:",j,":",str(s[i][j]).replace(\'u\\'\',\'\\'\').decode("unicode-escape")
	
	
	
	

 

json.dumps : dict转成str，将字典转换为字符串

json.loads：str转成dict，将字符串转换为字典

参考：json.dumps和 json.loads 区别，如此简单