qplaintextedit行距

from PyQt5.QtWidgets import QApplication, QPlainTextEdit

app = QApplication([])

editor = QPlainTextEdit()
editor.setPlainText("This is a test.\nThis is another line.")

# 设置行距
editor.setStyleSheet("""
    QPlainTextEdit {
        line-height: 1.5;
    }
""")

editor.show()
app.exec_()

from PyQt5.QtWidgets import QApplication, QPlainTextEdit
from PyQt5.QtGui import QTextCursor, QTextBlockFormat

app = QApplication([])

editor = QPlainTextEdit()
editor.setPlainText("This is a test.\nThis is another line.")

# 获取 QTextDocument
doc = editor.document()

# 创建 QTextCursor
cursor = QTextCursor(doc)

# 选择整个文档
cursor.select(QTextCursor.Document)

# 创建 QTextBlockFormat 并设置行距
block_format = QTextBlockFormat()
block_format.setLineHeight(150, QTextBlockFormat.ProportionalHeight)

# 应用格式到文档
cursor.setBlockFormat(block_format)

editor.show()
app.exec_()