{"id":41750,"date":"2023-12-11T14:54:28","date_gmt":"2023-12-11T06:54:28","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=41750"},"modified":"2023-12-11T14:54:28","modified_gmt":"2023-12-11T06:54:28","slug":"isinstance%e4%bd%9c%e7%94%a8%e4%bb%a5%e5%8f%8a%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/isinstance%e4%bd%9c%e7%94%a8%e4%bb%a5%e5%8f%8a%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af%ef%bc%9f\/","title":{"rendered":"isinstance\u4f5c\u7528\u4ee5\u53ca\u5e94\u7528\u573a\u666f\uff1f"},"content":{"rendered":"<p>&#8220;`&#8221;<\/p>\n<p>isinstance(\u5bf9\u8c61\uff0c\u7c7b) \u5224\u65ad\u8fd9\u4e2a\u5bf9\u8c61\u662f\u4e0d\u662f\u8fd9\u4e2a\u7c7b\u6216\u8005\u8fd9\u4e2a\u7c7b\u7684\u5b50\u7c7b\u7684\u5b9e\u4f8b\u5316<\/p>\n<p>&lt;pre&gt;&lt;code&gt;# # \u5224\u65ada \u5c5e\u4e0d\u5c5e\u4e8eA\u8fd9\u4e2a\u7c7b\uff08\u53ef\u4ee5\u5224\u65ad\u5230\u7956\u5b97\u7c7b\uff09<br \/>\nclass A:<br \/>\n    pass<\/p>\n<p>class B(A):<br \/>\n    pass<br \/>\na = A()<br \/>\nb = B()<br \/>\nprint(isinstance(b,A)) # ===&gt; True  \u5224\u65ad\u5230\u7956\u5b97\u7c7b<\/p>\n<p># \u4efb\u4f55\u4e0eobject\u90fd\u662fTrue,\u5185\u90e8\u90fd\u7ee7\u627fobject<br \/>\nclass A:pass<br \/>\na = A()  # \u5b9e\u4f8b\u5316<br \/>\nprint(isinstance(a,object))  #  True<br \/>\n&lt;\/code&gt;&lt;\/pre&gt;<\/p>\n<p>\u00a0<\/p>\n<p>\u5e94\u7528\u573a\u666f\uff1arest framework \u8ba4\u8bc1\u7684\u6d41\u7a0b<\/p>\n<p>scrapy-redis<\/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; isinstance(\u5bf9\u8c61\uff0c\u7c7b) \u5224\u65ad\u8fd9\u4e2a\u5bf9\u8c61\u662f\u4e0d\u662f\u8fd9\u4e2a\u7c7b\u6216\u8005\u8fd9\u4e2a\u7c7b\u7684\u5b50\u7c7b\u7684\u5b9e [&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-41750","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41750","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=41750"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41750\/revisions"}],"predecessor-version":[{"id":41751,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41750\/revisions\/41751"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=41750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=41750"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=41750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}