http://aicoco.net/qa/index.php?qa=questions&qa_1=python-%E7%BC%96-%E7%A8%8B-%E4%B8%8E-%E5%AE%9E-%E8%B7%B5 Powered by Question2Answer http://aicoco.net/qa/index.php?qa=586&qa_1=%E5%A6%82%E4%BD%95%E7%94%A8%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E6%8F%90%E5%8F%96%E7%BD%91%E9%A1%B5%E6%95%B0%E6%8D%AE <p>如下图框框所勾选的数据，该如何使用正则表达式去提取数据呢？网址为：<a href="https://www.nba.com/stats/player/977/career" rel="nofollow" target="_blank">https://www.nba.com/stats/player/977/career</a></p> <p>提问者试图用如下愚蠢代码来逝逝，不知道我应该在哪些地方改进</p> <p>from bs4 import BeautifulSoup<br> import requests<br> import re<br> content = requests.get("<a href="https://www.nba.com/stats/player/977/career").text" rel="nofollow" target="_blank">https://www.nba.com/stats/player/977/career").text</a><br> res_tr = r'&lt;td&gt;(.*?)&lt;/td&gt;'<br> m_tr =&nbsp; re.findall(res_tr,content,re.S|re.M)<br> print(m_tr)</p> <p>&nbsp;</p> <p><img alt="" src="http://aicoco.net/qa/?qa=blob&amp;qa_blobid=3637752199589272274" style="height:371px; width:600px"></p> Python编程与实践 http://aicoco.net/qa/index.php?qa=586&qa_1=%E5%A6%82%E4%BD%95%E7%94%A8%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E6%8F%90%E5%8F%96%E7%BD%91%E9%A1%B5%E6%95%B0%E6%8D%AE Fri, 27 Oct 2023 10:43:09 +0000 http://aicoco.net/qa/index.php?qa=583&qa_1=%E5%88%9D%E5%AD%A6%E8%80%85%EF%BC%8C%E8%AF%B7%E9%97%AE%E5%90%84%E4%BD%8D%E8%80%81%E5%B8%88%EF%BC%8C%E4%B8%BB%E8%A6%81%E5%AD%A6%E4%B9%A0%E5%86%85%E5%AE%B9%E6%98%AFpandas%E7%9A%84%E6%95%B0%E6%8D%AE%E9%A2%84%E5%A4%84%E7%90%86%EF%BC%8C%E5%89%8D%E6%9C%9Fpython%E7%9A%84%E5%9F%BA%E7%A1%80%E5%86%85%E5%AE%B9%E9%9C%80%E8%A6%81%E6%8E%8C%E6%8F%A1%E5%93%AA%E4%BA%9B%E5%91%A2 Python编程与实践 http://aicoco.net/qa/index.php?qa=583&qa_1=%E5%88%9D%E5%AD%A6%E8%80%85%EF%BC%8C%E8%AF%B7%E9%97%AE%E5%90%84%E4%BD%8D%E8%80%81%E5%B8%88%EF%BC%8C%E4%B8%BB%E8%A6%81%E5%AD%A6%E4%B9%A0%E5%86%85%E5%AE%B9%E6%98%AFpandas%E7%9A%84%E6%95%B0%E6%8D%AE%E9%A2%84%E5%A4%84%E7%90%86%EF%BC%8C%E5%89%8D%E6%9C%9Fpython%E7%9A%84%E5%9F%BA%E7%A1%80%E5%86%85%E5%AE%B9%E9%9C%80%E8%A6%81%E6%8E%8C%E6%8F%A1%E5%93%AA%E4%BA%9B%E5%91%A2 Sat, 01 Apr 2023 10:23:41 +0000 http://aicoco.net/qa/index.php?qa=582&qa_1=notebook%E7%9A%84%E6%96%87%E4%BB%B6%E8%87%AA%E5%8A%A8%E4%BF%9D%E5%AD%98%E8%B7%AF%E5%BE%84%E5%8F%AF%E4%BB%A5%E6%9B%B4%E6%94%B9%E5%88%B0d%E7%9B%98%E5%90%97%EF%BC%8C%E6%88%91%E5%A4%8D%E5%88%B6%E4%BA%86%E4%B8%80%E4%B8%AA%E5%88%B0d%E7%9B%98%E6%97%A0%E6%B3%95%E6%89%93%E5%BC%80 Python编程与实践 http://aicoco.net/qa/index.php?qa=582&qa_1=notebook%E7%9A%84%E6%96%87%E4%BB%B6%E8%87%AA%E5%8A%A8%E4%BF%9D%E5%AD%98%E8%B7%AF%E5%BE%84%E5%8F%AF%E4%BB%A5%E6%9B%B4%E6%94%B9%E5%88%B0d%E7%9B%98%E5%90%97%EF%BC%8C%E6%88%91%E5%A4%8D%E5%88%B6%E4%BA%86%E4%B8%80%E4%B8%AA%E5%88%B0d%E7%9B%98%E6%97%A0%E6%B3%95%E6%89%93%E5%BC%80 Sat, 01 Apr 2023 10:22:36 +0000 http://aicoco.net/qa/index.php?qa=580&qa_1=df%E4%B8%AD%E6%9F%90%E5%88%97%E6%95%B0%E5%80%BC%E7%9A%84%E8%BF%90%E7%AE%97%E6%93%8D%E4%BD%9C <p>我将df_temp中Num列的数值乘以df.iloc[i,2]的值2或者乘以2，得到的结果不是原数据乘以2，求助有什么问题，谢谢</p> <p><img alt="" src="http://aicoco.net/qa/?qa=blob&amp;qa_blobid=17608823299561920186" style="height:65px; width:600px"></p> <p>df_temp原数据见下图<img alt="" src="http://aicoco.net/qa/?qa=blob&amp;qa_blobid=1040996326176173923" style="height:109px; width:600px"></p> <p>运算后的结果见下图<img alt="" src="http://aicoco.net/qa/?qa=blob&amp;qa_blobid=10084676933946824970" style="height:112px; width:600px"></p> <p>&nbsp;</p> Python编程与实践 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Dec 2022 13:24:20 +0000 http://aicoco.net/qa/index.php?qa=562&qa_1=%E5%A6%82%E4%BD%95%E5%9C%A8python%E4%B8%AD%E7%AE%A1%E7%90%86%E5%86%85%E5%AD%98%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=562&qa_1=%E5%A6%82%E4%BD%95%E5%9C%A8python%E4%B8%AD%E7%AE%A1%E7%90%86%E5%86%85%E5%AD%98%EF%BC%9F Mon, 26 Dec 2022 13:21:15 +0000 http://aicoco.net/qa/index.php?qa=558&qa_1=python2-%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3%E8%AE%BF%E9%97%AE%E5%A4%96%E9%83%A8%E5%8F%98%E9%87%8F%E6%8A%A5%E9%94%99%E7%9A%84%E9%97%AE%E9%A2%98 Python编程与实践 http://aicoco.net/qa/index.php?qa=558&qa_1=python2-%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3%E8%AE%BF%E9%97%AE%E5%A4%96%E9%83%A8%E5%8F%98%E9%87%8F%E6%8A%A5%E9%94%99%E7%9A%84%E9%97%AE%E9%A2%98 Mon, 26 Dec 2022 13:15:14 +0000 http://aicoco.net/qa/index.php?qa=553&qa_1=%E4%B8%BA%E4%BB%80%E4%B9%88%E8%AF%B4-python-%E6%98%AF%E5%8A%A8%E6%80%81%E8%AF%AD%E8%A8%80 Python编程与实践 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http://aicoco.net/qa/index.php?qa=524&qa_1=%E4%BB%80%E4%B9%88%E6%98%AFlambda%E8%A1%A8%E8%BE%BE%E5%BC%8F%EF%BC%9F%E5%AE%83%E6%9C%89%E4%BB%80%E4%B9%88%E5%A5%BD%E5%A4%84%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=524&qa_1=%E4%BB%80%E4%B9%88%E6%98%AFlambda%E8%A1%A8%E8%BE%BE%E5%BC%8F%EF%BC%9F%E5%AE%83%E6%9C%89%E4%BB%80%E4%B9%88%E5%A5%BD%E5%A4%84%EF%BC%9F Sun, 25 Dec 2022 05:04:51 +0000 http://aicoco.net/qa/index.php?qa=523&qa_1=kwargs-%E4%B8%AD%E7%9A%84args%EF%BC%8Ckwargs%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=523&qa_1=kwargs-%E4%B8%AD%E7%9A%84args%EF%BC%8Ckwargs%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%EF%BC%9F Sun, 25 Dec 2022 05:04:23 +0000 http://aicoco.net/qa/index.php?qa=522&qa_1=python%E9%87%8C%E9%9D%A2%E7%9A%84smtplib%E6%A8%A1%E5%9D%97%E6%9C%89%E4%BB%80%E4%B9%88%E5%8A%9F%E8%83%BD Python编程与实践 http://aicoco.net/qa/index.php?qa=522&qa_1=python%E9%87%8C%E9%9D%A2%E7%9A%84smtplib%E6%A8%A1%E5%9D%97%E6%9C%89%E4%BB%80%E4%B9%88%E5%8A%9F%E8%83%BD Sun, 25 Dec 2022 05:04:06 +0000 http://aicoco.net/qa/index.php?qa=521&qa_1=pip-%E4%B8%8D%E6%98%AF%E5%86%85%E9%83%A8%E6%88%96%E5%A4%96%E9%83%A8%E5%91%BD%E4%BB%A4%EF%BC%8C%E4%B9%9F%E4%B8%8D%E6%98%AF%E5%8F%AF%E8%BF%90%E8%A1%8C%E7%9A%84%E7%A8%8B%E5%BA%8F 按照网上的方法配置环境变量之后还是不可以，请问是为什么呢？ Python编程与实践 http://aicoco.net/qa/index.php?qa=521&qa_1=pip-%E4%B8%8D%E6%98%AF%E5%86%85%E9%83%A8%E6%88%96%E5%A4%96%E9%83%A8%E5%91%BD%E4%BB%A4%EF%BC%8C%E4%B9%9F%E4%B8%8D%E6%98%AF%E5%8F%AF%E8%BF%90%E8%A1%8C%E7%9A%84%E7%A8%8B%E5%BA%8F Sat, 24 Dec 2022 13:01:52 +0000 http://aicoco.net/qa/index.php?qa=518&qa_1=python%E4%B8%AD%E9%80%92%E5%BD%92%E7%9A%84%E6%9C%80%E5%A4%A7%E6%AC%A1%E6%95%B01000%E6%80%8E%E4%B9%88%E6%94%B9 Python编程与实践 http://aicoco.net/qa/index.php?qa=518&qa_1=python%E4%B8%AD%E9%80%92%E5%BD%92%E7%9A%84%E6%9C%80%E5%A4%A7%E6%AC%A1%E6%95%B01000%E6%80%8E%E4%B9%88%E6%94%B9 Tue, 13 Dec 2022 08:39:43 +0000 http://aicoco.net/qa/index.php?qa=515&qa_1=%E5%86%99%E9%A1%B9%E7%9B%AE%E6%97%B6%EF%BC%8Cpython%E4%B8%BA%E5%95%A5%E8%BF%90%E8%A1%8C%E9%80%9F%E5%BA%A6%E6%AF%94c-%E6%85%A2%EF%BC%9F%E4%B8%A4%E8%80%85%E5%8F%88%E5%A6%82%E4%BD%95%E9%80%89%E6%8B%A9%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=515&qa_1=%E5%86%99%E9%A1%B9%E7%9B%AE%E6%97%B6%EF%BC%8Cpython%E4%B8%BA%E5%95%A5%E8%BF%90%E8%A1%8C%E9%80%9F%E5%BA%A6%E6%AF%94c-%E6%85%A2%EF%BC%9F%E4%B8%A4%E8%80%85%E5%8F%88%E5%A6%82%E4%BD%95%E9%80%89%E6%8B%A9%EF%BC%9F Thu, 08 Dec 2022 13:24:47 +0000 http://aicoco.net/qa/index.php?qa=513&qa_1=%E6%93%8D%E4%BD%9C%E6%95%B0%E6%8D%AEfloat%E7%B1%BB%E5%9E%8B%E6%95%B0%E6%8D%AE-09999%EF%BC%8C%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3%E8%BF%99%E4%B8%AA%E9%97%AE%E9%A2%98 Python编程与实践 http://aicoco.net/qa/index.php?qa=513&qa_1=%E6%93%8D%E4%BD%9C%E6%95%B0%E6%8D%AEfloat%E7%B1%BB%E5%9E%8B%E6%95%B0%E6%8D%AE-09999%EF%BC%8C%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3%E8%BF%99%E4%B8%AA%E9%97%AE%E9%A2%98 Thu, 08 Dec 2022 13:09:05 +0000 http://aicoco.net/qa/index.php?qa=509&qa_1=%E5%9C%A8%E5%87%BD%E6%95%B0%E5%86%85%E5%8F%AF%E4%BB%A5%E4%BD%BF%E7%94%A8%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%E5%90%97%EF%BC%8C%E8%A6%81%E6%80%8E%E4%B9%88%E5%BC%95%E5%85%A5%E5%91%A2%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=509&qa_1=%E5%9C%A8%E5%87%BD%E6%95%B0%E5%86%85%E5%8F%AF%E4%BB%A5%E4%BD%BF%E7%94%A8%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%E5%90%97%EF%BC%8C%E8%A6%81%E6%80%8E%E4%B9%88%E5%BC%95%E5%85%A5%E5%91%A2%EF%BC%9F Thu, 08 Dec 2022 13:02:15 +0000 http://aicoco.net/qa/index.php?qa=508&qa_1=except%E7%9A%84%E7%94%A8%E6%B3%95%E5%92%8C%E4%BD%9C%E7%94%A8%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=508&qa_1=except%E7%9A%84%E7%94%A8%E6%B3%95%E5%92%8C%E4%BD%9C%E7%94%A8%EF%BC%9F Thu, 08 Dec 2022 11:46:40 +0000 http://aicoco.net/qa/index.php?qa=507&qa_1=%E4%B8%BA%E4%BB%80%E4%B9%88python%E4%B8%AD%E7%9A%84lambda%E8%A1%A8%E5%8D%95%E6%B2%A1%E6%9C%89%E8%AF%AD%E5%8F%A5%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=507&qa_1=%E4%B8%BA%E4%BB%80%E4%B9%88python%E4%B8%AD%E7%9A%84lambda%E8%A1%A8%E5%8D%95%E6%B2%A1%E6%9C%89%E8%AF%AD%E5%8F%A5%EF%BC%9F Thu, 08 Dec 2022 11:44:59 +0000 http://aicoco.net/qa/index.php?qa=501&qa_1=%E5%A6%82%E4%BD%95%E5%9C%A8python%E4%B8%AD%E7%AE%A1%E7%90%86%E5%86%85%E5%AD%98%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=501&qa_1=%E5%A6%82%E4%BD%95%E5%9C%A8python%E4%B8%AD%E7%AE%A1%E7%90%86%E5%86%85%E5%AD%98%EF%BC%9F Sun, 04 Dec 2022 13:19:06 +0000 http://aicoco.net/qa/index.php?qa=484&qa_1=notebook%E6%96%87%E6%A1%A3%E9%87%8C%E7%BB%A7%E7%BB%AD%E5%86%99%E4%BB%A3%E7%A0%81%EF%BC%8C%E5%A6%82%E4%BD%95%E5%B0%86%E4%B9%8B%E5%89%8D%E7%9A%84%E4%BB%A3%E7%A0%81%E5%86%8D%E8%BF%90%E8%A1%8C%E4%B8%80%E6%AC%A1%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=484&qa_1=notebook%E6%96%87%E6%A1%A3%E9%87%8C%E7%BB%A7%E7%BB%AD%E5%86%99%E4%BB%A3%E7%A0%81%EF%BC%8C%E5%A6%82%E4%BD%95%E5%B0%86%E4%B9%8B%E5%89%8D%E7%9A%84%E4%BB%A3%E7%A0%81%E5%86%8D%E8%BF%90%E8%A1%8C%E4%B8%80%E6%AC%A1%EF%BC%9F Thu, 17 Nov 2022 00:40:24 +0000 http://aicoco.net/qa/index.php?qa=483&qa_1=indent%EF%BC%9F%E5%A6%82%E4%BD%95%E6%89%BE%E5%88%B0%E5%85%B7%E4%BD%93%E6%98%AF%E5%93%AA%E9%87%8C%E7%BC%A9%E8%BF%9B%E9%94%99%E8%AF%AF%E4%BA%86%E5%91%A2%EF%BC%9F%E5%A6%82%E4%BD%95%E8%A7%A3%E5%86%B3%E7%BC%A9%E8%BF%9B%E9%97%AE%E9%A2%98%E5%91%A2%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=483&qa_1=indent%EF%BC%9F%E5%A6%82%E4%BD%95%E6%89%BE%E5%88%B0%E5%85%B7%E4%BD%93%E6%98%AF%E5%93%AA%E9%87%8C%E7%BC%A9%E8%BF%9B%E9%94%99%E8%AF%AF%E4%BA%86%E5%91%A2%EF%BC%9F%E5%A6%82%E4%BD%95%E8%A7%A3%E5%86%B3%E7%BC%A9%E8%BF%9B%E9%97%AE%E9%A2%98%E5%91%A2%EF%BC%9F Thu, 17 Nov 2022 00:33:41 +0000 http://aicoco.net/qa/index.php?qa=482&qa_1=%E5%B9%B3%E6%97%B6%E7%BC%96%E5%86%99%E8%BF%90%E8%A1%8Cpython%E7%A8%8B%E5%BA%8F%E7%94%A8%E4%BA%A4%E4%BA%92%E5%BC%8F%E5%A5%BD%E8%BF%98%E6%98%AF%E7%94%A8ide%E5%A5%BD 为什么老师上课写代码只用Jupyter不用Spyder呢？使用交互式和在集成开发环境里面编写python程序有什么优缺点？平时我们自己写python更推荐用哪种方式？ Python编程与实践 http://aicoco.net/qa/index.php?qa=482&qa_1=%E5%B9%B3%E6%97%B6%E7%BC%96%E5%86%99%E8%BF%90%E8%A1%8Cpython%E7%A8%8B%E5%BA%8F%E7%94%A8%E4%BA%A4%E4%BA%92%E5%BC%8F%E5%A5%BD%E8%BF%98%E6%98%AF%E7%94%A8ide%E5%A5%BD Thu, 17 Nov 2022 00:17:23 +0000 http://aicoco.net/qa/index.php?qa=481&qa_1=python%E4%B8%AD%E5%AD%90%E7%B1%BB%E7%BB%A7%E6%89%BF%E5%A4%9A%E4%B8%AA%E7%88%B6%E7%B1%BB%E8%AF%A5%E5%A6%82%E4%BD%95%E8%A1%A8%E7%A4%BA%EF%BC%8C%E8%BF%99%E4%BA%9B%E7%88%B6%E7%B1%BB%E4%B8%AD%E5%AD%98%E5%9C%A8%E9%A1%BA%E5%BA%8F%E9%97%AE%E9%A2%98%E5%90%97%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=481&qa_1=python%E4%B8%AD%E5%AD%90%E7%B1%BB%E7%BB%A7%E6%89%BF%E5%A4%9A%E4%B8%AA%E7%88%B6%E7%B1%BB%E8%AF%A5%E5%A6%82%E4%BD%95%E8%A1%A8%E7%A4%BA%EF%BC%8C%E8%BF%99%E4%BA%9B%E7%88%B6%E7%B1%BB%E4%B8%AD%E5%AD%98%E5%9C%A8%E9%A1%BA%E5%BA%8F%E9%97%AE%E9%A2%98%E5%90%97%EF%BC%9F Wed, 16 Nov 2022 17:11:21 +0000 http://aicoco.net/qa/index.php?qa=479&qa_1=%E4%BB%8E%E9%94%AE%E7%9B%98%E6%8F%90%E5%8F%96%E7%9A%84%E6%95%B0%E5%AD%97%E4%B9%9F%E6%98%AFstring%E7%B1%BB%E5%9E%8B%E5%90%97 Python编程与实践 http://aicoco.net/qa/index.php?qa=479&qa_1=%E4%BB%8E%E9%94%AE%E7%9B%98%E6%8F%90%E5%8F%96%E7%9A%84%E6%95%B0%E5%AD%97%E4%B9%9F%E6%98%AFstring%E7%B1%BB%E5%9E%8B%E5%90%97 Mon, 14 Nov 2022 14:26:24 +0000 http://aicoco.net/qa/index.php?qa=475&qa_1=jieba%E5%8A%A0wordcloud%E5%88%B6%E6%88%90%E8%AF%8D%E4%BA%91%E5%90%8E 例如不想要一个字（如 之乎者也 等所有的一个字）出现在词云中，如何过滤<br /> <br /> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;不想要长度为1~3个字母的单词，又该如何过滤 Python编程与实践 http://aicoco.net/qa/index.php?qa=475&qa_1=jieba%E5%8A%A0wordcloud%E5%88%B6%E6%88%90%E8%AF%8D%E4%BA%91%E5%90%8E Thu, 10 Nov 2022 08:45:02 +0000 http://aicoco.net/qa/index.php?qa=474&qa_1=%E7%BB%A7%E6%89%BF%E4%B8%AD%E8%BF%98%E5%8F%AF%E4%BB%A5%E7%94%A8%E7%88%B6%E7%B1%BB%E7%9A%84%E7%B1%BB%E5%8F%98%E9%87%8F%E5%90%97%EF%BC%9F%E5%A6%82%E6%9E%9C%E5%8F%AF%E4%BB%A5%E7%9A%84%E8%AF%9D%EF%BC%8C%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95%E5%92%8C%E5%9C%A8%E7%88%B6%E7%B1%BB%E4%B8%AD%E4%B8%80%E6%A0%B7%E5%90%97%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=474&qa_1=%E7%BB%A7%E6%89%BF%E4%B8%AD%E8%BF%98%E5%8F%AF%E4%BB%A5%E7%94%A8%E7%88%B6%E7%B1%BB%E7%9A%84%E7%B1%BB%E5%8F%98%E9%87%8F%E5%90%97%EF%BC%9F%E5%A6%82%E6%9E%9C%E5%8F%AF%E4%BB%A5%E7%9A%84%E8%AF%9D%EF%BC%8C%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95%E5%92%8C%E5%9C%A8%E7%88%B6%E7%B1%BB%E4%B8%AD%E4%B8%80%E6%A0%B7%E5%90%97%EF%BC%9F Thu, 10 Nov 2022 01:39:02 +0000 http://aicoco.net/qa/index.php?qa=472&qa_1=%E4%BA%8C%E7%BB%B4%E5%88%97%E8%A1%A8%E5%A6%82%E4%BD%95%E5%88%87%E7%89%87%EF%BC%9F <p>如何在二维列表中截取任意个长度任意的元素？</p> <p>如：</p> <pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'JetBrains Mono',monospace;font-size:9.8pt;"> map=[[0,3,2,5,6], [5,7,5,5,1], [4,5,6,2,1], [2,6,4,1,2], [9,8,7,13,8]]</pre> <p>如何截取中部的[[7,5,5],[5,6,2],[6,4,1]]?</p> Python编程与实践 http://aicoco.net/qa/index.php?qa=472&qa_1=%E4%BA%8C%E7%BB%B4%E5%88%97%E8%A1%A8%E5%A6%82%E4%BD%95%E5%88%87%E7%89%87%EF%BC%9F Mon, 07 Nov 2022 15:52:50 +0000 http://aicoco.net/qa/index.php?qa=469&qa_1=%E9%99%A4%E4%BA%86%E7%94%A8%E5%8F%96%E4%BD%99%E5%92%8C%E5%88%87%E7%89%87%EF%BC%8C%E8%BF%98%E6%9C%89%E4%BB%80%E4%B9%88%E5%8A%9E%E6%B3%95%E8%83%BD%E5%8F%8D%E8%BD%AC%E4%B8%80%E4%B8%AA%E4%B8%89%E4%BD%8D%E6%95%B4%E6%95%B0%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=469&qa_1=%E9%99%A4%E4%BA%86%E7%94%A8%E5%8F%96%E4%BD%99%E5%92%8C%E5%88%87%E7%89%87%EF%BC%8C%E8%BF%98%E6%9C%89%E4%BB%80%E4%B9%88%E5%8A%9E%E6%B3%95%E8%83%BD%E5%8F%8D%E8%BD%AC%E4%B8%80%E4%B8%AA%E4%B8%89%E4%BD%8D%E6%95%B4%E6%95%B0%EF%BC%9F Sun, 06 Nov 2022 14:36:46 +0000 http://aicoco.net/qa/index.php?qa=468&qa_1=%E7%94%9F%E6%88%90%E5%99%A8%E7%9A%84%E5%87%BD%E6%95%B0%E8%87%AA%E5%8A%A8%E5%A4%8D%E4%BD%8D%E7%9A%84%E5%86%85%E9%83%A8%E6%9C%BA%E5%88%B6%E6%98%AF%E4%BB%80%E4%B9%88%E6%A0%B7%E7%9A%84%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=468&qa_1=%E7%94%9F%E6%88%90%E5%99%A8%E7%9A%84%E5%87%BD%E6%95%B0%E8%87%AA%E5%8A%A8%E5%A4%8D%E4%BD%8D%E7%9A%84%E5%86%85%E9%83%A8%E6%9C%BA%E5%88%B6%E6%98%AF%E4%BB%80%E4%B9%88%E6%A0%B7%E7%9A%84%EF%BC%9F Thu, 03 Nov 2022 01:18:29 +0000 http://aicoco.net/qa/index.php?qa=465&qa_1=py%E7%9A%84%E8%AF%BB%E5%86%99%E6%96%87%E4%BB%B6%E4%B8%8Ec-%E6%9C%89%E4%BD%95%E4%B8%8D%E5%90%8C Python编程与实践 http://aicoco.net/qa/index.php?qa=465&qa_1=py%E7%9A%84%E8%AF%BB%E5%86%99%E6%96%87%E4%BB%B6%E4%B8%8Ec-%E6%9C%89%E4%BD%95%E4%B8%8D%E5%90%8C Wed, 02 Nov 2022 17:15:34 +0000 http://aicoco.net/qa/index.php?qa=462&qa_1=python%E7%94%A8%E4%BB%80%E4%B9%88%E5%87%BD%E6%95%B0%E8%83%BD%E4%BD%BF%E8%BE%93%E5%87%BA%E7%9A%84%E6%95%B0%E5%AD%97%E5%8F%B3%E7%AB%AF%E5%AF%B9%E9%BD%90%EF%BC%9F Python编程与实践 http://aicoco.net/qa/index.php?qa=462&qa_1=python%E7%94%A8%E4%BB%80%E4%B9%88%E5%87%BD%E6%95%B0%E8%83%BD%E4%BD%BF%E8%BE%93%E5%87%BA%E7%9A%84%E6%95%B0%E5%AD%97%E5%8F%B3%E7%AB%AF%E5%AF%B9%E9%BD%90%EF%BC%9F Sat, 29 Oct 2022 11:22:17 +0000 http://aicoco.net/qa/index.php?qa=459&qa_1=%E6%89%93%E5%BC%80%E6%96%87%E4%BB%B6%E5%A4%B9%E5%A4%96%E6%96%87%E4%BB%B6%E7%9A%84%E6%8F%8F%E8%BF%B0 课上讲的<br /> <br /> f = open(&#039;score.txt&#039;, &#039;r&#039;)这个文件是同一文件夹下的，那么如果要打开同一文件夹之外的文件如何实现呢？ Python编程与实践 http://aicoco.net/qa/index.php?qa=459&qa_1=%E6%89%93%E5%BC%80%E6%96%87%E4%BB%B6%E5%A4%B9%E5%A4%96%E6%96%87%E4%BB%B6%E7%9A%84%E6%8F%8F%E8%BF%B0 Thu, 27 Oct 2022 15:38:09 +0000 http://aicoco.net/qa/index.php?qa=456&qa_1=txt%EF%BC%8C%E8%BF%90%E8%A1%8C%E7%A8%8B%E5%BA%8F%E6%97%B6%E4%BB%8D%E6%98%BE%E7%A4%BAfilenotfounderror%EF%BC%9F%E8%BF%98%E6%9C%89%E8%80%81%E5%B8%88%E8%83%BD%E4%B8%8D%E8%83%BD%E5%8F%91%E4%B8%80%E4%B8%8B%E8%BF%99%E8%8A%82%E8%AF%BE%E7%9A%84%E4%BB%A3%E7%A0%81%EF%BC%8C%E6%88%91%E7%9A%84%E4%BB%A3%E7%A0%81%E5%B7%B2%E7%BB%8F%E4%B9%B1%E4%BA%86%E8%BF%90%E8%A1%8C%E6%9C%89%E9%97%AE%E9%A2%98%E4%BA%86 Python编程与实践 http://aicoco.net/qa/index.php?qa=456&qa_1=txt%EF%BC%8C%E8%BF%90%E8%A1%8C%E7%A8%8B%E5%BA%8F%E6%97%B6%E4%BB%8D%E6%98%BE%E7%A4%BAfilenotfounderror%EF%BC%9F%E8%BF%98%E6%9C%89%E8%80%81%E5%B8%88%E8%83%BD%E4%B8%8D%E8%83%BD%E5%8F%91%E4%B8%80%E4%B8%8B%E8%BF%99%E8%8A%82%E8%AF%BE%E7%9A%84%E4%BB%A3%E7%A0%81%EF%BC%8C%E6%88%91%E7%9A%84%E4%BB%A3%E7%A0%81%E5%B7%B2%E7%BB%8F%E4%B9%B1%E4%BA%86%E8%BF%90%E8%A1%8C%E6%9C%89%E9%97%AE%E9%A2%98%E4%BA%86 Thu, 27 Oct 2022 01:48:41 +0000 http://aicoco.net/qa/index.php?qa=455&qa_1=python%E6%98%AF%E5%90%A6%E8%A6%81%E8%80%83%E8%99%91%E5%87%8F%E5%B0%91%E5%AF%B9%E7%A9%BA%E9%97%B4%E7%94%B3%E8%AF%B7%E7%9A%84%E6%93%8D%E4%BD%9C C++在需要使用大量空间时需要申请使用、释放堆空间，Python里对空间的使用貌似更加频繁，写代码的时候是否需要注意少申请空间，Python有没有类似c++的堆空间的东西，还是对空间的申请使用并不属于Python的考虑因素。 Python编程与实践 http://aicoco.net/qa/index.php?qa=455&qa_1=python%E6%98%AF%E5%90%A6%E8%A6%81%E8%80%83%E8%99%91%E5%87%8F%E5%B0%91%E5%AF%B9%E7%A9%BA%E9%97%B4%E7%94%B3%E8%AF%B7%E7%9A%84%E6%93%8D%E4%BD%9C Thu, 27 Oct 2022 01:32:06 +0000 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