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[译]为什么在__new __()后总是调用__init __()?
原文来源: https://stackoverflow.com/questions/674304/why is init always called after new 需要控制新实例的创建时,请使用__new__。 需要控制新实例的初始化时,请使用 __init__。 __new__是实例创建的第 ...
分类:其他好文   时间:2019-07-29 14:48:26    阅读次数:106
Scala中关于auxiliary constructors
In Scala, constructors other than the primary constructor are called auxiliary constructors. Auxiliary constructors in Scala start with def this(...). ...
分类:其他好文   时间:2019-07-28 13:40:08    阅读次数:108
SDNU 1377.Problem C: Jolly Jumpers(水题)
Description Description Problem C: Jolly Jumpers A sequence of n > 0 integers is called a jolly jumper if the absolute values of the difference betwee ...
分类:其他好文   时间:2019-07-27 19:53:40    阅读次数:111
pure funtion
A function is called pure function if it always returns the same result for same argument values and it has no side effects like modifying an argument ...
分类:其他好文   时间:2019-07-26 19:31:54    阅读次数:109
Shuffle an Array (水塘抽样)
随机性问题 水塘抽样算法可保证每个样本被抽到的概率相等 使用场景:从包含n个项目的集合S中选取k个样本,其中n为一很大或未知的数量,尤其适用于不能把所有n个项目都存放到主内存的情况 Knuth洗牌算法 拿起第i张牌时,只从它前面的牌随机选出j,或从它后面的牌随机选出j交换即可 ...
分类:其他好文   时间:2019-07-24 19:30:01    阅读次数:92
POJ-1260-Pearls-dp+理解题意
In Pearlania everybody is fond of pearls. One company, called The Royal Pearl, produces a lot of jewelry with pearls in it. The Royal Pearl has its na ...
分类:其他好文   时间:2019-07-22 11:44:07    阅读次数:116
Fox And Two Dots-dfs
Fox Ciel is playing a mobile puzzle game called "Two Dots". The basic levels are played on a board of size n?×?m cells, like this: Each cell contains ...
分类:其他好文   时间:2019-07-18 19:47:46    阅读次数:136
Relative-Frequency|frequency|pie chart |bar chart
2.2Organizing Qualitative Data The number of times a particular distinct value occurs is called its frequency (or count) Relative-Frequency Distributi ...
分类:其他好文   时间:2019-07-18 13:52:54    阅读次数:130
SPOJ - REPEATS Repeats (后缀数组)
A string s is called an (k,l)-repeat if s is obtained by concatenating k>=1 times some seed string t with length l>=1. For example, the string s = aba ...
分类:编程语言   时间:2019-07-12 15:36:22    阅读次数:101
odoo Controller接口开发 POST请求的跨域问题解决方法
odooController接口开发POST请求的跨域问题解决方法1、odooController接口开发,前端在请求的时候会发生跨域问题,报错信息如下:Functiondeclaredascapableofhandlingrequestoftype‘json‘butcalledwitharequestoftype‘http‘2、解决方法如下:odoo官网给的参数解
分类:其他好文   时间:2019-07-10 12:23:21    阅读次数:421
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