新增Log类，输出日志到文件

import os
import logging

PATH = lambda p: os.path.abspath(
os.path.join(os.path.dirname(file), p)
)

class Log(object):
"""
log类
"""
def init(self):
global logger, logPath, resultPath
resultPath = PATH('../logs')
# logPath = os.path.join(resultPath, time.strftime('%Y%m%d%H%M%S', time.localtime()))

    # if not os.path.exists(logPath):
    #     os.mkdir(logPath)
    if not os.path.exists(resultPath):
        os.mkdir(resultPath)

    # 创建logger，设置日志等级
    # DEBUG INFO WARNING ERROR CRITICAL等级依次递增
    self.logger = logging.getLogger()
    self.logger.setLevel(logging.INFO)

    # 创建handler，输出日志到文件
    # fh = logging.FileHandler(os.path.join(logPath, 'outPut.log'), encoding='utf-8', mode='a')
    fh = logging.FileHandler(os.path.join(resultPath, 'outPut.log'), encoding='utf-8', mode='a')
    formatter = logging.Formatter('%(asctime)s  - %(levelname)s - %(message)s')
    fh.setFormatter(formatter)

    # 创建handler，输出日志到terminal
    ch = logging.StreamHandler()
    formatter = logging.Formatter('%(asctime)s  - %(levelname)s - %(message)s')
    ch.setFormatter(formatter)

    if str(self.logger.handlers) == '[]':
        self.logger.addHandler(fh)
        self.logger.addHandler(ch)
    else:
        self.logger.info('log handler已存在')

    ch.close()
    fh.close()

def getLogger(self):
    """
    get logger
    :return:
    """
    return self.logger

if name == 'main':
my_log = Log()
my_log.logger.info('test info')