import timeimport threadingtry:    # 线程和协程都可处理    import greenlet    get_ident =  greenlet.getcurrentexcept Exception as e:    get_ident = threading.get_identclass Local(object):    """        通过进程号/协程号的唯一标识，给每一个进程/协程开辟自己个空间，实现数据隔离    """    DIC = {}    def __getattr__(self, item):        ident = get_ident()        if ident in self.DIC:            return self.DIC[ident].get(item)        return None    def __setattr__(self, key, value):        ident = get_ident()        if ident in self.DIC:            self.DIC[ident][key] = value        else:            self.DIC[ident] = {key: value}obj = Local()def fn(i):    obj.x1 = i    time.sleep(2)    print(obj.x1,i)for i in range(10):    t = threading.Thread(target=fn,args=(i,))    t.start()