fixed a bug:TypeError

Traceback (most recent call last):
File "F:\Code\Python\PythonPackage\DataParse\H315RFTestValueParser.py",
line 64, in <module>
p = listForderFileList(PARSE_PATH)
File "F:\Code\Python\PythonPackage\DataParse\H315RFTestValueParser.py",
line 18, in listForderFileList
result = parseData(filename)
File "F:\Code\Python\PythonPackage\DataParse\H315RFTestValueParser.py",
line 33, in parseData
if(('PER' in line) and ('_PER' | "PER_" not in line)):
TypeError: unsupported operand type(s) for |: 'str' and 'str'