其實使用pangu做文本格式標準化的業務代碼在之前就實作了，主要能夠將中文文本檔案中的文字、標點符號等進行標準化，
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但是為了方便起來我們這里使用了Qt5將其做成了一個可以操作的頁面應用，這樣不熟悉python的朋友就可以不用寫代碼直接雙擊運行使用就OK了，
為了使文本格式的美化程序不影響主執行緒的使用，特地采用QThread子執行緒來專門的運行文本檔案美化的業務程序，接下來還是采用pip的方式將所有需要的非標準模塊安裝一下，
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pangu
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple PyQt5
將我們使用到的pyqt5應用制作模塊以及業務模塊pangu匯入到我們的代碼塊中，
# It imports all the classes, attributes, and methods of the PyQt5.QtCore module into the global symbol table.
from PyQt5.QtCore import *
# It imports all the classes, attributes, and methods of the PyQt5.QtWidgets module into the global symbol table.
from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout, QVBoxLayout, QTextBrowser, QLineEdit, QPushButton, \
QFormLayout, QFileDialog
# It imports all the classes, attributes, and methods of the PyQt5.QtGui module into the global symbol table.
from PyQt5.QtGui import QIcon, QFont, QTextCursor
# It imports the pangu module.
import pangu
# It imports the sys module.
import sys
# It imports the os module.
import os
為了減少python模塊在打包時資源占用過多，打的exe應用程式的占用空間過大的情況，這次我們只匯入了能夠使用到的相關python類，這個小細節大家注意一下，
下面創建一個名稱為PanGuUI的python類來實作對整個應用頁面的開發，將頁面的布局以及組件相關的部分寫到這個類中，并且給頁面組件系結好相應的槽函式從而實作頁面的'點擊'等功能，
# It creates a class called PanGuUI that inherits from QWidget.
class PanGuUI(QWidget):
def __init__(self):
"""
A constructor. It is called when an object is created from a class and it allows the class to initialize the
attributes of a class.
"""
super(PanGuUI, self).__init__()
self.init_ui()
def init_ui(self):
"""
This function initializes the UI.
"""
self.setWindowTitle('文本檔案美化器 公眾號：Python 集中營')
self.setWindowIcon(QIcon('txt.ico'))
self.brower = QTextBrowser()
self.brower.setFont(QFont('宋體', 8))
self.brower.setReadOnly(True)
self.brower.setPlaceholderText('處理行程展示區域...')
self.brower.ensureCursorVisible()
self.txt_file_path = QLineEdit()
self.txt_file_path.setPlaceholderText('源文本檔案路徑')
self.txt_file_path.setReadOnly(True)
self.txt_file_path_btn = QPushButton()
self.txt_file_path_btn.setText('匯入')
self.txt_file_path_btn.clicked.connect(self.txt_file_path_btn_click)
self.new_txt_file_path = QLineEdit()
self.new_txt_file_path.setPlaceholderText('新文本檔案路徑')
self.new_txt_file_path.setReadOnly(True)
self.new_txt_file_path_btn = QPushButton()
self.new_txt_file_path_btn.setText('路徑')
self.new_txt_file_path_btn.clicked.connect(self.new_txt_file_path_btn_click)
self.start_btn = QPushButton()
self.start_btn.setText('開始匯入')
self.start_btn.clicked.connect(self.start_btn_click)
hbox = QHBoxLayout()
hbox.addWidget(self.brower)
fbox = QFormLayout()
fbox.addRow(self.txt_file_path, self.txt_file_path_btn)
fbox.addRow(self.new_txt_file_path, self.new_txt_file_path_btn)
v_vbox = QVBoxLayout()
v_vbox.addWidget(self.start_btn)
vbox = QVBoxLayout()
vbox.addLayout(fbox)
vbox.addLayout(v_vbox)
hbox.addLayout(vbox)
self.thread_ = PanGuThread(self)
self.thread_.message.connect(self.show_message)
self.thread_.finished.connect(self.finshed)
self.setLayout(hbox)
def show_message(self, text):
"""
It shows a message
:param text: The text to be displayed
"""
cursor = self.brower.textCursor()
cursor.movePosition(QTextCursor.End)
self.brower.append(text)
self.brower.setTextCursor(cursor)
self.brower.ensureCursorVisible()
def txt_file_path_btn_click(self):
"""
It opens a file dialog box and allows the user to select a file.
"""
txt_file = QFileDialog.getOpenFileName(self, os.getcwd(), '打開文本檔案',
'Text File(*.txt)')
self.txt_file_path.setText(txt_file[0])
def new_txt_file_path_btn_click(self):
"""
This function opens a file dialog box and allows the user to select a file to save the output to.
"""
new_txt_file = QFileDialog.getOpenFileName(self, os.getcwd(), '打開文本檔案',
'Text File(*.txt)')
self.new_txt_file_path.setText(new_txt_file[0])
def start_btn_click(self):
"""
A function that is called when the start button is clicked.
"""
self.thread_.start()
self.start_btn.setEnabled(False)
def finshed(self, finished):
"""
:param finished: A boolean value that is True if the download is finished, False otherwise
"""
if finished is True:
self.start_btn.setEnabled(True)
創建名稱為PanGuThread的子執行緒，將具體實作美化格式化文本字串的業務代碼塊寫入到子執行緒中，子執行緒繼承的是QThread的PyQt5的執行緒類，通過創建子執行緒并且將子執行緒的信號資訊傳遞到主執行緒中，在主執行緒的文本瀏覽器中進行展示達到實時跟蹤執行結果的效果，
# This class is a subclass of QThread, and it's used to split the text into words
class PanGuThread(QThread):
message = pyqtSignal(str)
finished = pyqtSignal(bool)
def __init__(self, parent=None):
"""
A constructor that initializes the class.
:param parent: The parent widget
"""
super(PanGuThread, self).__init__(parent)
self.working = True
self.parent = parent
def __del__(self):
"""
A destructor. It is called when the object is destroyed.
"""
self.working = True
self.wait()
def run(self) -> None:
"""
> This function runs the program
"""
try:
txt_file_path = self.parent.txt_file_path.text().strip()
self.message.emit('源檔案路徑資訊讀取正常！')
new_txt_file_path = self.parent.new_txt_file_path.text().strip()
self.message.emit('新檔案路徑資訊讀取正常！')
list_ = []
with open(txt_file_path, encoding='utf-8') as f:
lines_ = f.readlines()
self.message.emit('源檔案內容讀取完成！')
n = 1
for line_ in lines_:
text = pangu.spacing_text(line_)
self.message.emit('第{0}行檔案內容格式化完成！'.format(n))
list_.append(text)
n = n + 1
self.message.emit('源檔案路徑資訊格式化完成！')
self.message.emit('即將開始將格式化內容寫入新檔案！')
with open(new_txt_file_path, 'a') as f:
for line_ in list_:
f.write(line_ + '\n')
self.message.emit('新檔案內容寫入完成！')
self.finished.emit(True)
except Exception as e:
self.message.emit('檔案內容讀取或格式化發生例外！')
if __name__ == '__main__':
app = QApplication(sys.argv)
main = PanGuUI()
main.show()
sys.exit(app.exec_())
完成了開發開始測驗一下效果如何，創建了兩個文本檔案data.txt、new_data.txt，點擊'開始運行'之后會調起整個的業務子執行緒實作文本格式化，結果完美運行來看一下執行程序展示，
【往期精彩】
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小王，給這2000個客戶發一下節日祝福的郵件...
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