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PyQt6实例_批量下载pdf工具_界面开发

news 2025/7/5 22:01:57

前置：

代码：

视频：

前置：

1 本系列将以 “PyQt6实例_批量下载pdf工具”开头，放在【PyQt6实例】专栏
2 本系列涉及到的PyQt6知识点：
线程池：QThreadPool,QRunnable；
信号与槽：pyqtSignal,pyqtSlot；
界面：QTextEdit,QLabel,QLineText,QPushButton,QMainWindow,QWidget;
布局：QHBoxLayout,QVBoxLayout;
弹框：QFileDialog,QMessageBox。
3 本系列后续会在B站录制视频，到时会在文末贴出链接。本人还是建议先看博文，不懂的再看视频，这样效率高，节约时间。

代码：

from datetime import datetime
from PyQt6.QtCore import (
QSize,Qt
)
from PyQt6.QtWidgets import(
QApplication,
QMainWindow,
QLabel,
QLineEdit,
QPushButton,
QFileDialog,
QTextEdit,
QHBoxLayout,
QVBoxLayout,
QWidget
)

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('PDF Downloader')
        self.setMinimumSize(QSize(600,400))

        label1 = QLabel('存储pdf网址txt文件所在目录:')
        self.txtdir_lineedit = QLineEdit()
        self.choicedir_btn = QPushButton('打开目录')
        self.choicedir_btn.clicked.connect(self.choicedir_btn_clicked)
        label2 = QLabel('设置下载后pdf存储目录：')
        self.savedir_lineedit = QLineEdit()
        self.savedir_btn = QPushButton('设置目录')
        self.savedir_btn.clicked.connect(self.savedir_btn_clicked)

        self.execute_btn = QPushButton('执行')
        self.execute_btn.clicked.connect(self.execute_btn_clicked)
        self.stop_btn = QPushButton('停止')
        self.stop_btn.clicked.connect(self.stop_btn_clicked)

        label3 = QLabel('运行日志：')
        label4 = QLabel('其他信息：')
        self.excutelog_textedit = QTextEdit()
        self.excutelog_textedit.setReadOnly(True)
        self.otherlog_textedit = QTextEdit()
        self.otherlog_textedit.setReadOnly(True)

        layout0 = QHBoxLayout()
        layout0.addWidget(label1)
        layout0.addWidget(self.txtdir_lineedit)
        layout0.addWidget(self.choicedir_btn)

        layout1 = QHBoxLayout()
        layout1.addWidget(label2)
        layout1.addWidget(self.savedir_lineedit)
        layout1.addWidget(self.savedir_btn)

        layout2 = QHBoxLayout()
        layout2.addWidget(self.execute_btn)
        layout2.addWidget(self.stop_btn)

        layout3 = QVBoxLayout()
        layout3.addWidget(label3)
        layout3.addWidget(self.excutelog_textedit)

        layout4 = QVBoxLayout()
        layout4.addWidget(label4)
        layout4.addWidget(self.otherlog_textedit)

        layout5 = QHBoxLayout()
        layout5.addLayout(layout3)
        layout5.addLayout(layout4)

        layout = QVBoxLayout()
        layout.addLayout(layout0)
        layout.addLayout(layout1)
        layout.addLayout(layout2)
        layout.addLayout(layout5)

        widget = QWidget()
        widget.setLayout(layout)

        self.setCentralWidget(widget)
        pass
    def choicedir_btn_clicked(self):
        dir_name = QFileDialog.getExistingDirectory(self,"打开存储pdf网址txt文件所在目录")
        if dir_name:
            self.txtdir_lineedit.setText(dir_name)
        pass
    def savedir_btn_clicked(self):
        dir_name = QFileDialog.getExistingDirectory(self, "指定下载后pdf存储的目录")
        if dir_name:
            self.savedir_lineedit.setText(dir_name)
        pass
    def execute_btn_clicked(self):
        pass
    def stop_btn_clicked(self):
        pass
    def insert_executelog(self,msg:str):
        pre_str = f"{datetime.now().strftime('%Y-%m-%d %H:%M:%S')} {msg}"
        self.excutelog_textedit.append(pre_str)
        pass
    def insert_otherlog(self,msg:str):
        pre_str = f"{datetime.now().strftime('%Y-%m-%d %H:%M:%S')} {msg}"
        self.otherlog_textedit.append(pre_str)
        pass
    pass

if __name__ == '__main__':
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec()
    pass