python 学习_第二模块 logging

https://www.cnblogs.com/augustyang/p/9077648.html

import logging

log_file = "test_log.log"
def logger():
    logger = logging.getLogger()
    fh = logging.FileHandler(log_file)        # 日志的文件名
    ch = logging.StreamHandler()              # 打印到窗口的输出
    fm = logging.Formatter("%(asctime)s|%(lineno)s|%(message)s")      # 输出格式
    fh.setFormatter(fm)
    ch.setFormatter(fm)             # 定义handler
    logger.addHandler(fh)           # 添加 addHandler
    logger.addHandler(ch)
    logger.setLevel("DEBUG")        # 设置日志级别
    return logger

logger = logger()

logger.debug("sssklwdebugwwwwss")