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  • pyqt5学习之QPainTextEditer

    QPainTextEditer:纯文本编辑

    案例

    from PyQt5.Qt import *
    import sys
    
    
    # *************占位提示文本***************开始
    # app = QApplication(sys.argv)
    #
    # window = QWidget()
    # window.setWindowTitle('学习')
    # window.resize(500, 500)
    #
    # text = QPlainTextEdit(window)
    # text.resize(100, 100)
    # text.move(200, 200)
    # text.setPlaceholderText('123')  # 设置占位提示文本
    # print(text.placeholderText())
    #
    # window.show()
    #
    # sys.exit(app.exec_())
    # *************占位提示文本***************结束
    
    # *************设置只读***************开始
    # app = QApplication(sys.argv)
    #
    # window = QWidget()
    # window.setWindowTitle('学习')
    # window.resize(500, 500)
    #
    # text = QPlainTextEdit(window)
    # text.resize(100, 100)
    # text.move(200, 200)
    # text.setPlaceholderText('123')  # 设置占位提示文本
    # print(text.placeholderText())
    #
    # text1 = QPlainTextEdit(window)
    # text1.resize(100, 100)
    # text1.move(200, 300)
    # text1.setReadOnly(True)  # 设置只读
    # print(text1.isReadOnly())
    #
    # window.show()
    #
    # sys.exit(app.exec_())
    # *************设置只读***************结束
    
    
    # *************覆盖模式***************开始
    # app = QApplication(sys.argv)
    #
    # window = QWidget()
    # window.setWindowTitle('学习')
    # window.resize(500, 500)
    #
    # text = QPlainTextEdit(window)
    # text.resize(100, 100)
    # text.move(200, 200)
    # text.setPlaceholderText('123')  # 设置占位提示文本
    # print(text.placeholderText())
    # text.setOverwriteMode(True)  # 设置覆盖模式
    #
    # text1 = QPlainTextEdit(window)
    # text1.resize(100, 100)
    # text1.move(200, 300)
    # text1.setReadOnly(True)  # 设置只读
    # print(text1.isReadOnly())
    #
    # window.show()
    #
    # sys.exit(app.exec_())
    
    # *************覆盖模式***************结束
    
    
    # *************占位提示文本***************开始
    # app = QApplication(sys.argv)
    #
    # window = QWidget()
    # window.setWindowTitle('学习')
    # window.resize(500, 500)
    #
    # text = QPlainTextEdit(window)
    # text.resize(100, 100)
    # text.move(200, 200)
    # text.setPlaceholderText('123')  # 设置占位提示文本
    # print(text.placeholderText())
    # text.setOverwriteMode(False)  # 设置覆盖模式
    # text.setTabChangesFocus(True)  # tab控制
    #
    #
    # text1 = QPlainTextEdit(window)
    # text1.resize(100, 100)
    # text1.move(200, 300)
    # text1.setReadOnly(True)  # 设置只读
    # print(text1.isReadOnly())
    #
    # window.show()
    #
    # sys.exit(app.exec_())
    # *************占位提示文本***************结束
    
    # *************文本操作***************开始
    # app = QApplication(sys.argv)
    #
    # window = QWidget()
    # window.setWindowTitle('学习')
    # window.resize(500, 500)
    #
    # text = QPlainTextEdit(window)
    # text.resize(100, 100)
    # text.move(200, 200)
    # text.setPlaceholderText('123')  # 设置占位提示文本
    # print(text.placeholderText())
    # text.setOverwriteMode(False)  # 设置覆盖模式
    # text.setTabChangesFocus(True)  # tab控制
    #
    #
    # text1 = QPlainTextEdit(window)
    # text1.resize(100, 100)
    # text1.move(200, 300)
    # text1.setPlainText('789')  # 设置普通文本
    # text1.appendPlainText('aaaaa')  #添加文本
    # print(text1.isReadOnly())
    #
    # window.show()
    #
    # sys.exit(app.exec_())
    
    # *************文本操作***************结束
    
    
    # *************块操作***************开始
    # app = QApplication(sys.argv)
    #
    # window = QWidget()
    # window.setWindowTitle('学习')
    # window.resize(500, 500)
    #
    # text = QPlainTextEdit(window)
    # text.resize(100, 100)
    # text.move(200, 200)
    # text.setPlaceholderText('123')  # 设置占位提示文本
    # print(text.placeholderText())
    # text.setOverwriteMode(False)  # 设置覆盖模式
    # text.setTabChangesFocus(True)  # tab控制
    #
    #
    # text1 = QPlainTextEdit(window)
    # text1.resize(100, 100)
    # text1.move(200, 300)
    # text1.setMaximumBlockCount(3)  # 设置最大块数显示的行数
    # print(text1.isReadOnly())
    #
    # window.show()
    #
    # sys.exit(app.exec_())
    
    # *************块操作***************结束
    View Code

           

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  • 原文地址:https://www.cnblogs.com/mosewumo/p/12532248.html
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