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  Python3中六种标准数据类型的简单说明和理解

  ...见运算 下面用一个例子来展示一些常见的运算： val_arr=[Made,in,China] del val_arr[1] print(val_arr) #[Made, China] print(len(val_arr)) #2 val_newarr=val_arr+[:information] print(val_newarr) #[Made, China, :informati...

  Cheng_Gang 2019-07-30 16:16 评论0 收藏0
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  Python3中六种标准数据类型的简单说明和理解

  ...见运算 下面用一个例子来展示一些常见的运算： val_arr=[Made,in,China] del val_arr[1] print(val_arr) #[Made, China] print(len(val_arr)) #2 val_newarr=val_arr+[:information] print(val_newarr) #[Made, China, :informati...

  rockswang 2019-06-26 18:24 评论0 收藏0
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  Python告诉你NBA球星都喜欢在哪个位置出手？

  ...ders) 我们关心的数据就是 LOC_X、LOC_Y（出手位置）和 SHOT_MADE_FLAG（是否投中）这三列。 05 绘制投篮点 使用 matplotlib库的散点图绘制 scatter 方法就可以把投篮点画出来，这个我们之前的各种案例里也用过不少次了： made = shot_df[shot...

  stackfing 2019-07-31 11:29 评论0 收藏0
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  Python 的异步 IO：Asyncio 之 TCP Client

  ... def __init__(self, loop): self.loop = loop def connection_made(self, transport): request = GET / HTTP/1.1 Host: localhost transport.write(request.encode()) ...

  anonymoussf 2019-07-31 11:02 评论0 收藏0
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  [LeetCode] 825. Friends Of Appropriate Ages

  ...ple will not friend request themselves. How many total friend requests are made? Example 1: Input: [16,16]Output: 2Explanation: 2 people friend request each other.Example 2: Input: [16,17,18]Output...

  miya 2019-08-16 13:47 评论0 收藏0
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  基于node-canvas 和　express 的一款图片格式转换工具

  ... src, width: 794, height: 1123, h1: This is a PDF, p: It be made node-canvas,It be made node-canvas,It be made node-canvas,It be made node-canvas, name: test.pdf, outUrl: ./image/newImg/, ty...

  zhoutk 2019-08-20 18:10 评论0 收藏0
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  关于JAVA中顺序IO的基本操作

  ...ng and writing. If the file does not already exist then an attempt will be made to create it. ) rws和rw一样，对文件内容或元数据的每次更新都要同步写入底层存储设备。(Open for reading and writing, as with rw, and also requi...

  EscapedDog 2021-11-22 12:04 评论0 收藏0
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  ECMAScript6(15)：Promise 对象

  ...tion(val){ console.log(val); //resolved throw new Error(man-made Error); }).catch(function(err){ console.log(err.message); //man-made Error }); 错误会从最初的请求沿着回调函数，一直被传递下来。这一点和传统的错误冒泡...

  edgardeng 2019-08-23 11:46 评论0 收藏0
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  Java中常用的几种DOCX转PDF方法

  ...s Word to close the document and discard any changes that may * have been made since the document was opened or edited. */ public void closeDoc() { this.closeDoc(JacobWordSearch.DO_NOT_SAVE_C...

  zgbgx 2019-08-14 14:34 评论0 收藏0
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  vim 干货

  ...xit Vim :q! Quit without saving :x Write file (if changes has been made) and exit :sav filename Saves file as filename . Repeats the last change made in normal mode 5. Repeats 5 ...

  wwq0327 2019-06-28 10:19 评论0 收藏0
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  Git 工作流

  ...out master Switched to branch master $ git merge --no-ff release-1.2 Merge made by recursive. (Summary of changes) $ git tag -a 1.2release 分支合并到 develop 分支$ git checkout develop Switched to branch ...

  Tecode 2022-06-28 18:59 评论0 收藏0
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  Kaggle案例——用python从进网站到获得评测结果

  ...不是数字都是object），还有一些统计信息等等。 其中shot_made_flag就是投进与否，也就是结果/标签/分类。1表示投进，0表示没进。 第4步，我们可以查看数值类数据的一些分布情况，这里只是部分。 >>print data.describe() 第5步，查...

  Crazy_Coder 2019-07-30 16:52 评论0 收藏0