# 多分支报错try:    print("hello")    # print(x)    print("======>")except KeyError as k:    raise KeyError()    # print(k)except NameError as n:    print(n)else:    print("try code 没有异常，就执行我")finally:    print("无论有无异常都执行，一般执行清理操作")# 万能异常try:    print(x)except Exception as e:    print(e)else:    print("try code 没有异常，就执行我")finally:    print("无论有无异常都执行，一般执行清理操作")