{"id":41201,"date":"2023-12-11T14:52:51","date_gmt":"2023-12-11T06:52:51","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=41201"},"modified":"2023-12-11T14:52:51","modified_gmt":"2023-12-11T06:52:51","slug":"%e4%bb%80%e4%b9%88%e6%98%af%e8%a3%85%e7%ae%b1boxing%e5%92%8c%e6%8b%86%e7%ae%b1unboxing%ef%bc%9f-%ef%bc%88%ef%bc%89","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e4%bb%80%e4%b9%88%e6%98%af%e8%a3%85%e7%ae%b1boxing%e5%92%8c%e6%8b%86%e7%ae%b1unboxing%ef%bc%9f-%ef%bc%88%ef%bc%89\/","title":{"rendered":"\u4ec0\u4e48\u662f\u88c5\u7bb1(boxing)\u548c\u62c6\u7bb1(unboxing)\uff1f \uff08*\uff09"},"content":{"rendered":"<p>&#8220;`&#8221;                    Object\u662f\u5f15\u7528\u7c7b\u578b\uff0c\u4f46\u662f\u5b83\u7684\u5b50\u7c7bInt32\u7adf\u7136\u4e0d\u80fd\u53bbObject\u80fd\u53bb\u7684&ldquo;\u8981\u6c42\u5fc5\u987b\u662f\u5f15\u7528\u7c7b\u578b&rdquo;<\/p>\n<p>\u7684\u5730\u65b9\uff0c\u8fdd\u53cd\u4e86\u7ee7\u627f\u7684\u539f\u5219\uff0c\u6240\u4ee5\u9700\u8981\u628aInt32\u88c5\u5728Object\u4e2d\u624d\u80fd\u4f20\u9012\u3002<\/p>\n<p>\u88c5\u7bb1\uff1a\u4ece\u503c\u7c7b\u578b\u63a5\u53e3\u8f6c\u6362\u5230\u5f15\u7528\u7c7b\u578b\u3002<\/p>\n<p>\u62c6\u7bb1\uff1a\u4ece\u5f15\u7528\u7c7b\u578b\u8f6c\u6362\u5230\u503c\u7c7b\u578b\u3002  <\/p>\n<p>&lt;pre&gt;&lt;code&gt;        object obj = null;\/\/\u5f15\u7528\u7c7b\u578b<\/p>\n<p>        obj = 1;\/\/\u88c5\u7bb1\uff0cboxing\u3002\u628a\u503c\u7c7b\u578b\u5305\u88c5\u4e3a\u5f15\u7528\u7c7b\u578b\u3002<\/p>\n<p>        int i1 = (int)obj;\/\/\u62c6\u7bb1\u3002unboxing<br \/>\n&lt;\/code&gt;&lt;\/pre&gt;<\/p>\n<p>\u00a0<\/p>\n<p>&lt;pre&gt;&lt;code&gt;            &quot;&#8220;`<br \/>\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;`&#8221; Object\u662f\u5f15\u7528\u7c7b\u578b\uff0c\u4f46\u662f\u5b83\u7684\u5b50\u7c7bInt32\u7adf\u7136\u4e0d\u80fd\u53bbObject\u80fd\u53bb\u7684&#038;l [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-41201","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=41201"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41201\/revisions"}],"predecessor-version":[{"id":41202,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41201\/revisions\/41202"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=41201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=41201"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=41201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}