1 正确
if('A' not in self.storageDevice.softVersion or\
'B' not in self.storageDevice.softVersion or\
'C' not in self.storageDevice.softVersion or\
'D' not in self.storageDevice.softVersion )
2.错误
if('A' or 'B' or 'C' or 'D' not in self.storageDevice.softVersion)