本篇内容主要讲解“python中鲜为人知的功能特性有哪些”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“python中鲜为人知的功能特性有哪些”吧!
>>> a = "wtf">>> b = "wtf">>> a is bTrue>>> a = "wtf!">>> b = "wtf!">>> a is bFalse>>> a, b = "wtf!", "wtf!">>> a is bTrue # 3.7 版本返回结果为 False.
>>> a = 256>>> b = 256>>> a is bTrue>>> a = 257>>> b = 257>>> a is bFalse>>> a = 257; b = 257>>> a is bTrue
some_tuple = ("A", "tuple", "with", "values")another_tuple = ([1, 2], [3, 4], [5, 6])>>> some_tuple[2] = "change this"TypeError: 'tuple' object does not support item assignment>>> another_tuple[2].append(1000) # 这里不出现错误>>> another_tuple([1, 2], [3, 4], [5, 6, 1000])>>> another_tuple[2] += [99, 999]TypeError: 'tuple' object does not support item assignment>>> another_tuple([1, 2], [3, 4], [5, 6, 1000, 99, 999])
e = 7try: raise Exception()except Exception as e: pass
输出
>>> print(e)NameError: name 'e' is not defined
def some_func(): try: return 'from_try' finally: return 'from_finally'
输出
>>> some_func()'from_finally'
到此,相信大家对“python中鲜为人知的功能特性有哪些”有了更深的了解,不妨来实际操作一番吧!这里是亿速云网站,更多相关内容可以进入相关频道进行查询,关注我们,继续学习!
亿速云「云服务器」,即开即用、新一代英特尔至强铂金CPU、三副本存储NVMe SSD云盘,价格低至29元/月。点击查看>>
免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。
原文链接:https://my.oschina.net/liuzhijun/blog/4393461