43课查天气(1)，尝试编写

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发表于 2018-6-1 18:53:05 |显示全部楼层

本帖最后由猪猪猪猪于 2018-6-1 19:31 编辑

使用mac os vim，py3
在网上查询了半天，不太理解json的使用方法，索性撇开json，仅使用urllib，写出来之后，发现获取的北京地区的代号是错误的？但是其他的一些地区是可以查询的，比如武汉，南京等，不知道是什么原因，希望能有大神解惑！
citynumget.py

import urllib.request
response = urllib.request.urlopen('http://m.weather.com.cn/data3/city.xml')
html = response.read().decode()
datas1 = html.split(',')
city = []
for data in datas1:
data = data.split('|')
city.append(data[0])
city1 = []
for i in city:
response = urllib.request.urlopen('http://m.weather.com.cn/data3/city%s.xml'%(i))
html = response.read().decode()
datas2 = html.split(',')
for data in datas2:
data = data.split('|')
city1.append(data[0])
city2 = []
for i in city1:
response = urllib.request.urlopen('http://m.weather.com.cn/data3/city%s.xml'%(i))
html = response.read().decode()
city2.append(html)
city3 = ','.join(city2)
citynum = open('citynum.txt','w')
citynum.write(city3)
citynum.close()

复制代码

查询天气.py

import urllib.request
f = open('citynum.txt')
city = f.read()
f.close()
city1 = city.split(',')
citynum = {}
for i in city1:
data = i.split('|')
citynum[data[1]] = data[0]
print('请输入要查询天气的城市:')
city = input()
response = urllib.request.urlopen('http://www.weather.com.cn/data/cityinfo/101%s.html'%(citynum[city]))
html = response.read().decode()
html = html.split('{')#乱想的笨办法，将读取的文本写入字典
html = html[-1].split('}')
html = html[0]
html = html.split('"')
html = ''.join(html)
html = html.split(',')
weather = {}
for i in html:
i = i.split(':')
weather[i[0]] = i[1]
print('%s当前天气为%s,气温为%s~%s'%(weather['city'],weather['weather'],weather['temp1'],weather['temp2']))