異常處理要仔細,防治取不到值
zm_score = result["zm_score"] if 'zm_score' in result else None
這句話可以改成zm_score = result.get("zm_score")如果key不存在,返回的就是None
異常處理要仔細,防治取不到值
zm_score = result["zm_score"] if 'zm_score' in result else None
這句話可以改成zm_score = result.get("zm_score")如果key不存在,返回的就是None
class MetaCls(type): def __new__(cls, *args, **kwargs): print("in MetaCls") # return super(Meta