替换Python记录器的默认处理程序

import logging

class MyHandler(logging.Handler):
    def emit(self, record):
        # 自定义日志处理逻辑
        print(f"MyHandler: {record.msg}")

# 创建记录器
logger = logging.getLogger("mylogger")
logger.setLevel(logging.DEBUG)

# 创建自定义处理程序
my_handler = MyHandler()

# 添加自定义处理程序
logger.addHandler(my_handler)

# 移除默认处理程序
for handler in logging.root.handlers:
    logging.root.removeHandler(handler)

# 测试记录器
logger.debug("This is a debug message")
logger.info("This is an info message")
logger.warning("This is a warning message")
logger.error("This is an error message")
logger.critical("This is a critical message")

MyHandler: This is a debug message
MyHandler: This is an info message
MyHandler: This is a warning message
MyHandler: This is an error message
MyHandler: This is a critical message