{"id":178624,"date":"2022-04-14T14:24:52","date_gmt":"2022-04-14T06:24:52","guid":{"rendered":"http:\/\/www.idc.net\/help\/178624\/"},"modified":"2022-04-14T14:24:52","modified_gmt":"2022-04-14T06:24:52","slug":"%e5%90%8e%e6%b5%aa%e4%ba%91python%e6%95%99%e7%a8%8b%ef%bc%9a%e6%80%8e%e4%b9%88%e5%af%b9python%e7%9a%84%e5%ad%97%e5%85%b8%e8%bf%9b%e8%a1%8c%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/178624\/","title":{"rendered":"\u540e\u6d6a\u4e91Python\u6559\u7a0b\uff1a\u600e\u4e48\u5bf9python\u7684\u5b57\u5178\u8fdb\u884c\u6392\u5e8f"},"content":{"rendered":"

<\/p>\n

\u6211\u4eec\u77e5\u9053Python\u7684\u5185\u7f6edictionary\u6570\u636e\u7c7b\u578b\u662f\u65e0\u5e8f\u7684\uff0c\u901a\u8fc7key\u6765\u83b7\u53d6\u5bf9\u5e94\u7684value\u3002\u53ef\u662f\u6709\u65f6\u6211\u4eec\u9700\u8981\u5bf9dictionary\u4e2d \u7684item\u8fdb\u884c\u6392\u5e8f\u8f93\u51fa\uff0c\u53ef\u80fd\u6839\u636ekey\uff0c\u4e5f\u53ef\u80fd\u6839\u636evalue\u6765\u6392\u3002\u5230\u5e95\u6709\u591a\u5c11\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u5bf9dictionary\u7684\u5185\u5bb9\u8fdb\u884c\u6392\u5e8f\u8f93\u51fa\u5462\uff1f\u4e0b\u9762\u6458\u53d6\u4e86 \u4e00\u4e9b\u7cbe\u5f69\u7684\u89e3\u51b3\u529e\u6cd5\u3002 <\/p>\n

python\u5bf9\u5bb9\u5668\u5185\u6570\u636e\u7684\u6392\u5e8f\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u5bb9\u5668\u81ea\u5df1\u7684sort\u51fd\u6570\uff0c\u4e00\u79cd\u662f\u5185\u5efa\u7684sorted\u51fd\u6570\u3002<\/p>\n

sort\u51fd\u6570\u548csorted\u51fd\u6570\u552f\u4e00\u7684\u4e0d\u540c\u662f\uff0csort\u662f\u5728\u5bb9\u5668\u5185(in-place)\u6392\u5e8f\uff0csorted\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u6392\u597d\u5e8f\u7684\u5bb9\u5668\u3002<\/p>\n

1 \u6309\u7167Key\u503c\u6392\u5e8f<\/p>\n

#\u6700\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u8fd9\u4e2a\u662f\u6309\u7167key\u503c\u6392\u5e8f\uff1a \ndef sortedDictValues1(adict): \nitems = adict.items() \nitems.sort() \nreturn [value for key, value in items] \n\n#\u53c8\u4e00\u4e2a\u6309\u7167key\u503c\u6392\u5e8f\uff0c\u8c8c\u4f3c\u6bd4\u4e0a\u4e00\u4e2a\u901f\u5ea6\u8981\u5feb\u70b9 \ndef sortedDictValues2(adict): \nkeys = adict.keys() \nkeys.sort() \nreturn [dict[key] for key in keys] \n\n#\u8fd8\u662f\u6309key\u503c\u6392\u5e8f\uff0c\u636e\u8bf4\u66f4\u5feb\u3002\u3002\u3002\u800c\u4e14\u5f53key\u4e3atuple\u7684\u65f6\u5019\u7167\u6837\u9002\u7528 \ndef sortedDictValues3(adict): \nkeys = adict.keys() \nkeys.sort() \nreturn map(adict.get, keys) \n\n#\u4e00\u884c\u8bed\u53e5\u641e\u5b9a\uff1a \n[(k,di[k]) for k in sorted(di.keys())] \n\n#\u7528sorted\u51fd\u6570\u7684key\u53c2\u6570\uff08func\uff09\u6392\u5e8f\uff1a \n#\u6309\u7167key\u8fdb\u884c\u6392\u5e8f \nprint sorted(dict1.items(), key=lambda d: d[0])<\/pre>\n
2 \u6309\u7167value\u503c\u6392\u5e8f<\/p>\n
#\u6765\u4e00\u4e2a\u6839\u636evalue\u6392\u5e8f\u7684\uff0c\u5148\u628aitem\u7684key\u548cvalue\u4ea4\u6362\u4f4d\u7f6e\u653e\u5165\u4e00\u4e2alist\u4e2d\uff0c\u518d\u6839\u636elist\u6bcf\u4e2a\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u503c\uff0c\u5373\u539f\u6765\u7684value\u503c\uff0c\n\u6392\u5e8f\uff1a \ndef sort_by_value(d): \nitems=d.items() \nbackitems=[[v[1],v[0]] for v in items] \nbackitems.sort() \nreturn [ backitems[i][1] for i in range(0,len(backitems))] \n\n#\u8fd8\u662f\u4e00\u884c\u641e\u5b9a\uff1a \n[ v for v in sorted(di.values())] \n\n#\u7528lambda\u8868\u8fbe\u5f0f\u6765\u6392\u5e8f\uff0c\u66f4\u7075\u6d3b\uff1a \nsorted(d.items(), lambda x, y: cmp(x[1], y[1])), \u6216\u53cd\u5e8f\uff1a \nsorted(d.items(), lambda x, y: cmp(x[1], y[1]), reverse=True) \n\n#\u7528sorted\u51fd\u6570\u7684key\u53c2\u6570\uff08func\uff09\u6392\u5e8f\uff1a # \u6309\u7167value\u8fdb\u884c\u6392\u5e8f \nprint sorted(dict1.items(), key=lambda d: d[1])<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u6211\u4eec\u77e5\u9053Python\u7684\u5185\u7f6edictionary\u6570\u636e\u7c7b\u578b\u662f\u65e0\u5e8f\u7684\uff0c\u901a\u8fc7key\u6765\u83b7\u53d6\u5bf9\u5e94\u7684value\u3002\u53ef\u662f\u6709\u65f6\u6211\u4eec […]<\/p>\n","protected":false},"author":1,"featured_media":178625,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[182397],"tags":[],"class_list":["post-178624","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/178624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=178624"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/178624\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media\/178625"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=178624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=178624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=178624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}