python 异常处理

name = ["test","测试"]data = {}try:    # open("oooo.txt")    # name[3]    # data["name"]    a = 1    print(a)except (KeyError,IndexError) as e:    print("没有这个key", e)except KeyError as e:    print("没有这个key",e)except IndexError as e:    print("列表操作错误",e)except Exception as e:#抓取所有错误    print("未知错误",e)else :    print(‘一切正常‘)finally:    print(‘不管有没有错，都执行‘)#自定义异常class WupeiqiException(Exception):    def __init__(self, msg):        self.message = msg    def __str__(self):        return self.messagetry:    raise WupeiqiException(‘我的异常‘)except WupeiqiException as  e:    print(e)