{"id":118,"date":"2021-09-09T00:12:46","date_gmt":"2021-09-08T16:12:46","guid":{"rendered":"http:\/\/139.224.63.49\/?p=118"},"modified":"2021-09-09T00:12:46","modified_gmt":"2021-09-08T16:12:46","slug":"python%e5%88%9d%e5%a7%8b%e5%8c%96%e5%88%97%e8%a1%a8%e7%9a%84%e4%b8%80%e4%b8%aa%e5%b0%8f%e7%bb%86%e8%8a%82","status":"publish","type":"post","link":"http:\/\/iamnear.top\/?p=118","title":{"rendered":"python\u521d\u59cb\u5316\u5217\u8868\u7684\u4e00\u4e2a\u5c0f\u7ec6\u8282"},"content":{"rendered":"\n<p>\u4eca\u5929\u7528python\u5199\u7b97\u6cd5\u7684\u65f6\u5019\u6ce8\u610f\u5230python\u521d\u59cb\u5316list\u7684\u4e00\u4e2a\u5c0f\u7ec6\u8282<\/p>\n\n\n\n<p>\u5f53\u6211\u4eec\u60f3\u5f97\u5230\u4e00\u4e2a\u957f\u5ea6\u4e3an\u7684\u5217\u8868\u65f6\uff0c\u4e00\u822c\u53ef\u4ee5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>l = &#91;0 for i in range(n)\n# or\nl = &#91;0]*n<\/code><\/pre>\n\n\n\n<p>\u5bf9\u4e8e\u7b2c\u4e8c\u79cd\u65b9\u5f0f\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662f\u5f15\u7528\u7c7b\u578b\uff08\u6bd4\u5982\u5bf9\u8c61\uff0cstring\u7b49\uff09\uff0c\u90a3\u4e48\u8fd9\u4e2alist\u4e2d\u6bcf\u4e2a\u5143\u7d20\u4fdd\u5b58\u7684\u90fd\u662f\u76f8\u540c\u7684\u5f15\u7528<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a = object()\nl = &#91;a]*2\nid(l&#91;0])==id(l&#91;1]) # turn out True<\/code><\/pre>\n\n\n\n<p>\u6240\u4ee5\u5982\u679c\u60f3\u5f97\u5230\u4e00\u4e2am\u884cn\u5217\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u4e00\u5b9a\u8981\u5c0f\u5fc3\uff0c\u4e0d\u80fd\u5982\u4e0b\u521d\u59cb\u5316<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>n = 3\nm = 3\nl = &#91;&#91;0]*n]*m\nl&#91;0]&#91;1] = 1\nl&#91;1]&#91;1]==1 # trun out True\uff01\uff01<\/code><\/pre>\n\n\n\n<p>\u6240\u4ee5\u8fd8\u662f\u8001\u8001\u5b9e\u5b9e\u7684\u521d\u59cb\u5316\u5427<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>l = &#91;&#91;0 for _ in range(n)] for _ in range(m)]<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u5929\u7528python\u5199\u7b97\u6cd5\u7684\u65f6\u5019\u6ce8\u610f\u5230python\u521d\u59cb\u5316list\u7684\u4e00\u4e2a\u5c0f\u7ec6\u8282 \u5f53\u6211\u4eec\u60f3\u5f97\u5230\u4e00\u4e2a\u957f\u5ea6\u4e3an&hellip; <a href=\"http:\/\/iamnear.top\/?p=118\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">python\u521d\u59cb\u5316\u5217\u8868\u7684\u4e00\u4e2a\u5c0f\u7ec6\u8282<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-118","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"h-entry","9":"h-as-article"},"_links":{"self":[{"href":"http:\/\/iamnear.top\/index.php?rest_route=\/wp\/v2\/posts\/118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/iamnear.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/iamnear.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/iamnear.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/iamnear.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=118"}],"version-history":[{"count":1,"href":"http:\/\/iamnear.top\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions"}],"predecessor-version":[{"id":119,"href":"http:\/\/iamnear.top\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions\/119"}],"wp:attachment":[{"href":"http:\/\/iamnear.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/iamnear.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=118"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/iamnear.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}