def writelines_with_endl(fp, contents, num=1):
"""
带换行写多行内容
:param fp: 文件对象
:param contents: 要写入的多行内容，列表
"""
if contents is not None:
for line in contents:
fp.write(line + '\n' * num)
else:
logger.info("empty content")
def writeline_with_endl(fp, content, num=2):
"""
带换行写内容
:param num: 换行个数
:param fp: 文件对象
:param content: 要写入的内容
"""
if content is not None:
fp.write(content + '\n' * num)
else:
logger.info("empty content")