PyQt5—基本窗口控件之QTextEdit

# -*- coding:utf-8 -*- # Time : 2019/08/11 上午 11:57 # Author : 御承扬 # e-mail:2923616405@ # project: PyQt5 # File : qt13_textEdit.py # @software: PyCharm from PyQt5.QtGui import QIcon from PyQt5.QtWidgets import QApplication, QWidget, QTextEdit, QVBoxLayout, QPushButton import sys class TextEditDemo(QWidget): def __init__(self, parent=None): super(TextEditDemo, self).__init__(parent) self.setWindowTitle("QTextEdit 例子") self.setWindowIcon(QIcon("./images/")) self.resize(300, 270) self.textEdit = QTextEdit() self.btnPress1 = QPushButton("显示文本") self.btnPress2 = QPushButton("显示 HTML") layout = QVBoxLayout() layout.addWidget(self.textEdit) layout.addWidget(self.btnPress1) layout.addWidget(self.btnPress2) self.setLayout(layout) self.btnPress1.clicked.connect(self.btnPress1_Clicked) self.btnPress2.clicked.connect(self.btnPress2_Clicked) def btnPress1_Clicked(self): self.textEdit.setPlainText("Hello PyQt5!\n单击按钮") def btnPress2_Clicked(self): self.textEdit.setHtml("<font color='red' size='6'><red>Hello PyQt5!\n单击按钮。</font>") if __name__ == "__main__": app = QApplication(sys.argv) win = TextEditDemo() win.show() sys.exit(app.exec_())