Python实现成语连字

闲来无事用Python写了一个成语练字的小工具，输入框输入一行汉字，然后可以生成多个成语连成这行文字，和生成藏头诗有些类似。

知识点就是爬虫的使用，本例中用requests实现爬虫，用bs4这个lib实现URL解析，pyqt实现UI

代码如下：

 1 from PyQt5 import QtCore, QtGui, QtWidgets
 2 
 3 from PyQt5.QtWidgets import (QWidget, QPushButton,
 4                              QFrame, QApplication)
 5 import sys
 6 import requests, urllib
 7 from bs4 import BeautifulSoup
 8 import random
 9 
10 URL = 'http://chengyu.t086.com/'
11 
12 HOST = {
13     'User-Agent': 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',
14     'Referer': 'http://chengyu.t086.com/'
15 }
16 
17 class MainWindow(QtWidgets.QWidget):
18 
19     def __init__(self):
20         super().__init__()
21 
22         self.gridLayout = QtWidgets.QGridLayout()
23 
24         self.wordEdit = QtWidgets.QLineEdit()
25         self.genBtn = QtWidgets.QPushButton("生成")
26         self.textBox = QtWidgets.QTextEdit()
27 
28         self.gridLayout.addWidget(self.wordEdit, 1, 1)
29         self.gridLayout.addWidget(self.genBtn, 1, 2)
30         self.gridLayout.addWidget(self.textBox, 2, 1)
31 
32         self.genBtn.clicked[bool].connect(self.genTextBox)
33 
34         self.setLayout(self.gridLayout)
35         self.setWindowTitle("成语生成器")
36 
37     def genTextBox(self):
38         self.textBox.clear()
39         input_word = self.wordEdit.text()
40         for letter in input_word:
41             if u'\u4e00' <= letter <= u'\u9fa5':    #判断是否为汉字
42                 self.textBox.append(ConvertToChengyu(letter))
43 
44 
45 def ConvertToChengyu(letter):
46     chengyuList = []
47     u = urllib.parse.quote(letter, encoding='gb2312')
48     url = 'http://chengyu.t086.com/chaxun.php?q1={}&q2=&q3=&q4='.format(u)
49     start_html = requests.get(url, headers=HOST)
50     start_html.encoding = 'gb2312'
51     soup = BeautifulSoup(start_html.text, "html.parser")
52     listw = soup.find_all('td', class_='td1')
53     for w in listw:
54         chengyuList.append(w.text)
55     chengyuList = list(filter(lambda n: len(n) == 4, chengyuList))
56     print(chengyuList)
57     if len(chengyuList):
58         i = random.randint(0, len(chengyuList) - 1)
59         return chengyuList[i]
60     else:
61         return "No Result"
62 
63 
64 if __name__ == '__main__':
65     app = QApplication(sys.argv)
66     w = MainWindow()
67     w.show()
68     sys.exit(app.exec_())

运行效果如下：

Python实现成语连字

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