import logging


class QTextEditLogger(logging.Handler):
    def __init__(self, text_widget):
        super().__init__()
        self.widget = text_widget

    def emit(self, record):
        # 格式化日志信息
        log_message = self.format(record)
        # 在主线程中更新 QTextEdit
        self.widget.append(log_message)