Python tkinter界面实现历史天气查询的示例代码

import requests
from lxml import etree
import re
import tkinter as tk
from PIL import Image, ImageTk
from xpinyin import Pinyin


def get_image(file_nam, width, height):
  im = Image.open(file_nam).resize((width, height))
  return ImageTk.PhotoImage(im)


def spider():
  headers = {
    'user-agent': 'Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/535.24 (KHTML, like Gecko) Chrome/19.0.1055.1 Safari/535.24',
    "referer": "https://lishi.tianqi.com/chengdu/index.html"
  }
  p = Pinyin()
  place = ''.join(p.get_pinyin(b1.get()).split('-'))      # 获取地区文本框的输入 变为拼音
  # 处理用户输入的时间
  # 规定三种格式都可以 2018/10/1 2018年10月1日 2018-10-1
  date = b2.get()  # 获取时间文本框的输入
  if '/' in date:
    tm_list = date.split('/')
  elif '-' in date:
    tm_list = date.split('-')
  else:
    tm_list = re.findall(r'\d+', date)

  if int(tm_list[1]) < 10:    # 1-9月 前面加 0
    tm_list[1] = f'0{tm_list[1]}'
  # 分析网页规律 构造url
  # 直接访问有该月所有天气信息的页面 提高查询效率
  url = f"https://lishi.tianqi.com/{place}/{''.join(tm_list[:2])}.html"
  resp = requests.get(url, headers=headers)
  html = etree.HTML(resp.text)
  # xpath定位提取该日<em style="color:transparent">本文来源[email protected]搞@^&代*@码)网9</em>天气信息
  info = html.xpath(f'//ul[@class="thrui"]/li[{int(tm_list[2])}]/div/text()')
  # 输出信息格式化一下
  info1 = ['日期：', '最高气温：', '最低气温：', '天气：', '风向：']
  datas = [i + j for i, j in zip(info1, info)]
  info = '\n'.join(datas)
  t.insert('insert', '    查询结果如下    \n\n')
  t.insert('insert', info)
  print(info)


win = tk.Tk()
win.title('全国各地历史天气查询系统')
win.geometry('500x500')

# 画布 设置背景图片
canvas = tk.Canvas(win, height=500, width=500)
im_root = get_image('test.jpg', width=500, height=500)
canvas.create_image(250, 250, image=im_root)
canvas.pack()

# 单行文本
L1 = tk.Label(win, bg='yellow', text="地区：", font=("SimHei", 12))
L2 = tk.Label(win, bg='yellow', text="时间：", font=("SimHei", 12))
L1.place(x=85, y=100)
L2.place(x=85, y=150)

# 单行文本框 可采集键盘输入
b1 = tk.Entry(win, font=("SimHei", 12), show=None, width=35)
b2 = tk.Entry(win, font=("SimHei", 12), show=None, width=35)
b1.place(x=140, y=100)
b2.place(x=140, y=150)

# 设置查询按钮
a = tk.Button(win, bg='red', text="查询", width=25, height=2, command=spider)
a.place(x=160, y=200)

# 设置多行文本框 宽 高 文本框中字体 选中文字时文字的颜色
t = tk.Text(win, width=30, height=8, font=("SimHei", 18), selectforeground='red') # 显示多行文本
t.place(x=70, y=280)

# 进入消息循环
win.mainloop()

import requests
from lxml import etree
import re
import tkinter as tk
from PIL import Image, ImageTk
from xpinyin import Pinyin