{"id":156,"date":"2021-12-09T21:03:21","date_gmt":"2021-12-09T13:03:21","guid":{"rendered":"http:\/\/purplepoolobservatory.com\/?p=156"},"modified":"2021-12-09T21:03:21","modified_gmt":"2021-12-09T13:03:21","slug":"%e5%a6%82%e4%bd%95%e8%8e%b7%e5%8f%96ndarray%e4%b8%ad%e7%b4%a2%e5%bc%95%e4%bb%a5%e5%a4%96%e7%9a%84%e5%85%b6%e5%ae%83%e6%89%80%e6%9c%89%e5%80%bc","status":"publish","type":"post","link":"https:\/\/purplepoolobservatory.com\/?p=156","title":{"rendered":"\u5982\u4f55\u83b7\u53d6ndarray\u4e2d\u7d22\u5f15\u4ee5\u5916\u7684\u5176\u5b83\u6240\u6709\u503c"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>\u65b9\u6cd5\u4e00\uff1a\r\n\r\nimport numpy as np\r\na = np.array(&#91;0,1,2,3,4,5,5,6,7,8,9])\r\nprint(a)\r\nprint(a.sum())\r\n# &#91;0 1 2 3 4 5 5 6 7 8 9]\r\n# 50\r\na = np.ma.array(a, mask=False)\r\na.mask&#91;3] = True\r\nprint(a)\r\nprint(a.sum())\r\n# &#91;0 1 2 -- 4 5 5 6 7 8 9]\r\n# 47\r\n\u65b9\u6cd5\u4e8c\r\na_new = np.delete(a, 3, 0)\r\n\u8fd9\u4e2a3\u53ef\u4ee5\u662f\u4e2a\u7d22\u5f15\u5217\u8868<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-156","post","type-post","status-publish","format-gallery","hentry","category-technology","post_format-post-format-gallery"],"_links":{"self":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=156"}],"version-history":[{"count":1,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/156\/revisions"}],"predecessor-version":[{"id":157,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/156\/revisions\/157"}],"wp:attachment":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}