{"id":1100,"date":"2018-01-03T15:23:57","date_gmt":"2018-01-03T07:23:57","guid":{"rendered":"http:\/\/www.5x44.cn\/?p=1100"},"modified":"2018-01-03T15:24:07","modified_gmt":"2018-01-03T07:24:07","slug":"python3%e5%87%bd%e6%95%b0%e6%b3%a8%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.5x44.cn\/?p=1100","title":{"rendered":"[python3]\u51fd\u6570\u6ce8\u89e3"},"content":{"rendered":"<p>\u51fd\u6570\u6ce8\u89e3\u662f\u5b8c\u5168\u53ef\u9009\u7684\u5143\u6570\u636e\uff0c\u7528\u4e8e\u7528\u6237\u5b9a\u4e49\u51fd\u6570\u3002<br \/>\n\u6ce8\u89e3\u88ab\u5b58\u50a8\u4e8e\u51fd\u6570\u7684<em>__annotations__<\/em>\u5c5e\u6027\u4e2d\uff0c\u505a\u4e3a\u4e00\u4e2a<strong>\u5b57\u5178\uff08dict\uff09<\/strong>\uff0c\u5e76\u4e14\u5bf9\u51fd\u6570\u7684\u5176\u5b83\u90e8\u5206\u6ca1\u6709\u5f71\u54cd\u3002\u53c2\u6570\u6ce8\u89e3\u7531\u4e00\u4e2a\u5192\u53f7\uff08:\uff09\u540e\u9762\u52a0\u53c2\u6570\u540d\uff0c\u8ddf\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4f5c\u4e3a\u6ce8\u89e3\u5185\u5bb9\u3002\u8fd4\u56de\u6ce8\u89e3\u7531\u201c<strong>-&gt;<\/strong>\u201d\u5b9a\u4e49\uff0c\u8ddf\u4e00\u4e2a\u8868\u8fbe\u5f0f\uff0c\u5728\u53c2\u6570\u5217\u8868\u548c\u5192\u53f7\u4e4b\u95f4\u4e3adef\u8bed\u53e5\u7684\u7ed3\u5c3e\u3002<\/p>\n<p>\u4e0b\u9762\u4e3e\u4f8b\u4e86\u4f4d\u7f6e\u53c2\u6570\u3001\u5173\u952e\u5b57\u53c2\u6570\u548c\u8fd4\u56de\u503c\u6ce8\u89e3\uff1a<\/p>\n<pre><span class=\"gp\">&gt;&gt;&gt; <\/span><span class=\"k\">def<\/span> <span class=\"nf\">f<\/span><span class=\"p\">(<\/span><span class=\"n\">ham<\/span><span class=\"p\">:<\/span> <span class=\"nb\">str<\/span><span class=\"p\">,<\/span> <span class=\"n\">eggs<\/span><span class=\"p\">:<\/span> <span class=\"nb\">str<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'eggs'<\/span><span class=\"p\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"nb\">str<\/span><span class=\"p\">:<\/span>\r\n<span class=\"gp\">... <\/span>    <span class=\"nb\">print<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"Annotations:\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">f<\/span><span class=\"o\">.<\/span><span class=\"vm\">__annotations__<\/span><span class=\"p\">)<\/span>\r\n<span class=\"gp\">... <\/span>    <span class=\"nb\">print<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"Arguments:\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">ham<\/span><span class=\"p\">,<\/span> <span class=\"n\">eggs<\/span><span class=\"p\">)<\/span>\r\n<span class=\"gp\">... <\/span>    <span class=\"k\">return<\/span> <span class=\"n\">ham<\/span> <span class=\"o\">+<\/span> <span class=\"s1\">' and '<\/span> <span class=\"o\">+<\/span> <span class=\"n\">eggs<\/span>\r\n<span class=\"gp\">...<\/span>\r\n<span class=\"gp\">&gt;&gt;&gt; <\/span><span class=\"n\">f<\/span><span class=\"p\">(<\/span><span class=\"s1\">'spam'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"go\">Annotations: {'ham': &lt;class 'str'&gt;, 'return': &lt;class 'str'&gt;, 'eggs': &lt;class 'str'&gt;}<\/span>\r\n<span class=\"go\">Arguments: spam eggs<\/span>\r\n<span class=\"go\">'spam and eggs'<\/span><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u51fd\u6570\u6ce8\u89e3\u662f\u5b8c\u5168\u53ef\u9009\u7684\u5143\u6570\u636e\uff0c\u7528\u4e8e\u7528\u6237\u5b9a\u4e49\u51fd\u6570\u3002 \u6ce8\u89e3\u88ab\u5b58\u50a8\u4e8e\u51fd\u6570\u7684__annotations__\u5c5e\u6027\u4e2d\uff0c\u505a\u4e3a\u4e00\u4e2a\u5b57\u5178\uff08dict\uff09\uff0c\u5e76\u4e14\u5bf9\u51fd\u6570\u7684\u5176\u5b83\u90e8\u5206\u6ca1\u6709\u5f71\u54cd\u3002&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.5x44.cn\/?p=1100\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-1100","post","type-post","status-publish","format-standard","hentry","category-python3"],"_links":{"self":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/1100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1100"}],"version-history":[{"count":1,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/1100\/revisions"}],"predecessor-version":[{"id":1101,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/1100\/revisions\/1101"}],"wp:attachment":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}