pyqt交互界面实现 贝叶斯自动检查单词的实现

1、代码

1. checkword.py

import re,collections


def words(text): return re.findall('[a-z]+', text.lower()) 

def train(features):
    model = collections.defaultdict(lambda: 1)
    for f in features:
        model[f] += 1
    return model

with open('big.txt') as f:
    NWORDS = train(words(f.read()))

alphabet = 'abcdefghijklmnopqrstuvwxyz'

def edits1(word):
   splits     = [(word[:i], word[i:]) for i in range(len(word) + 1)]
   deletes    = [a + b[1:] for a, b in splits if b]
   transposes = [a + b[1] + b[0] + b[2:] for a, b in splits if len(b)>1]
   replaces   = [a + c + b[1:] for a, b in splits for c in alphabet if b]
   inserts    = [a + c + b     for a, b in splits for c in alphabet]
   return set(deletes + transposes + replaces + inserts)

def known_edits2(word):
    return set(e2 for e1 in edits1(word) for e2 in edits1(e1) if e2 in NWORDS)

def known(words): return set(w for w in words if w in NWORDS)

def correct(word):
    candidates = known([word]) or known(edits1(word)) or known_edits2(word) or [word]
    return max(candidates, key=NWORDS.get)

2.main.py

from PyQt5.QtWidgets import QLineEdit, QApplication, QDialog, QAction, QMessageBox
from PyQt5.QtGui import QIcon
import sys
from checkword import correct

class Line(QDialog):
    def __init__(self):
        super().__init__()
        self.Ui()

    def Ui(self):
        self.resize(450,100)
        self.setWindowTitle('微信公众号：学点编程吧--单词拼写检查')
        self.line = QLineEdit(self)
        self.line.move(20,20)
        action = QAction(self)
        action.setIcon(QIcon('check.ico'))
        action.triggered.connect(self.Check)
        self.line.addAction(action,QLineEdit.TrailingPosition)
        self.show()

    def Check(self):
        word = self.line.text()
        if correct(word) != word:
            QMessageBox.information(self,'提示信息','你或许想要表达的单词是：'+correct(word))
        else:
            QMessageBox.information(self,'提示信息','你填写的单词是：'+word)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    line = Line()
    sys.exit(app.exec_())