PyQt5最全12 使用QTextEdit控件输入多行文本
from PyQt5.QtWidgets import *
import sys
class QTextEditDemo(QWidget):
"""
QTextEditDemo控件
"""
def __init__(self):
super(QTextEditDemo, self).__init__()
self.initUI()
def initUI(self):
self.setWindowTitle('QTextEdit控件演示')
self.resize(300, 280)
self.textEdit = QTextEdit()
self.buttonText = QPushButton('显示文本')
self.buttonHTML = QPushButton('显示HTML')
self.buttonToText = QPushButton('获取文本')
self.buttonToHTML = QPushButton('获取HTML')
layout = QVBoxLayout()
layout.addWidget(self.textEdit)
layout.addWidget(self.buttonText)
layout.addWidget(self.buttonHTML)
layout.addWidget(self.buttonToText)
layout.addWidget(self.buttonToHTML)
self.buttonText.clicked.connect(self.onClick_ButtonText)
self.buttonHTML.clicked.connect(self.onClick_ButtonHTML)
self.buttonToText.clicked.connect(self.onClick_ButtonToText)
self.buttonToHTML.clicked.connect(self.onClick_ButtonToHTML)
self.setLayout(layout)
def onClick_ButtonText(self):
self.textEdit.setPlainText('Hello World!')
def onClick_ButtonToText(self):
print(self.textEdit.toPlainText())
def onClick_ButtonHTML(self):
self.textEdit.setHtml("Hello World")
def onClick_ButtonToHTML(self):
print(self.textEdit.toHtml())
if __name__ == '__main__':
app = QApplication(sys.argv)
main = QTextEditDemo()
print(main.__doc__)
main.show()
sys.exit(app.exec_())
结果
打印结果
Hello World
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
<html><head><meta name="qrichtext" content="1" /><style type="text/css">
p, li { white-space: pre-wrap; }
</style></head><body style=" font-family:'SimSun'; font-size:9pt; font-weight:400; font-style:normal;">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-size:x-large; color:#000000;">Hello World</span></p></body></html>
