我想突出显示在 PySide 的 QTextEdit 中显示的文本中的一个单词，我发现PyQt 的这个答案非常好并且有效，但它不适用于 PySide 的 QTextEdit。
有谁知道 PySide 有什么问题？
这是我上面提到的答案中的代码：
from PyQt4 import QtGui
from PyQt4 import QtCore
class MyHighlighter(QtGui.QTextEdit):
def __init__(self, parent=None):
super(MyHighlighter, self).__init__(parent)
# Setup the text editor
text = """In this text I want to highlight this word and only this word.\n""" +\
"""Any other word shouldn't be highlighted"""
self.setText(text)
cursor = self.textCursor()
# Setup the desired format for matches
format = QtGui.QTextCharFormat()
format.setBackground(QtGui.QBrush(QtGui.QColor("red")))
# Setup the regex engine
pattern = "word"
regex = QtCore.QRegExp(pattern)
# Process the displayed document
pos = 0
index = regex.indexIn(self.toPlainText(), pos)
while (index != -1):
# Select the matched text and apply the desired format
cursor.setPosition(index)
cursor.movePosition(QtGui.QTextCursor.EndOfWord, 1)
cursor.mergeCharFormat(format)
# Move to the next match
pos = index + regex.matchedLength()
index = regex.indexIn(self.toPlainText(), pos)
if __name__ == "__main__":
import sys
a = QtGui.QApplication(sys.argv)
t = MyHighlighter()
t.show()
sys.exit(a.exec_())
它完全适用于 PyQt，但是当我将导入更改为 PySide 时，它会停止突出显示单词。