{"id":94401,"date":"2020-05-03T10:33:42","date_gmt":"2020-05-03T02:33:42","guid":{"rendered":"http:\/\/4563.org\/?p=94401"},"modified":"2020-05-03T10:33:42","modified_gmt":"2020-05-03T02:33:42","slug":"hotspot-%e8%99%9a%e6%8b%9f%e6%9c%ba%e5%af%b9%e8%b1%a1%e7%9a%84%e5%ae%9e%e4%be%8b%e6%95%b0%e6%8d%ae%e9%83%a8%e5%88%86%e6%98%af%e5%90%a6%e5%ad%98%e7%9a%84%e6%98%af%e5%9c%b0%e5%9d%80%e5%80%bc","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=94401","title":{"rendered":"HotSpot \u865a\u62df\u673a\u5bf9\u8c61\u7684\u5b9e\u4f8b\u6570\u636e\u90e8\u5206\u662f\u5426\u5b58\u7684\u662f\u5730\u5740\u503c?"},"content":{"rendered":"
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HotSpot \u865a\u62df\u673a\u5bf9\u8c61\u7684\u5b9e\u4f8b\u6570\u636e\u90e8\u5206\u662f\u5426\u5b58\u7684\u662f\u5730\u5740\u503c? <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : yangyuhan12138 <\/span> <\/i> 19<\/span> <\/div>\n
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\u5728 HotSpot \u865a\u62df\u673a\u4e2d\uff0c\u5bf9\u8c61\u7684\u5185\u5b58\u5e03\u5c40\u5206\u4e3a\u4ee5\u4e0b 3 \u5757\u533a\u57df\uff1a<\/p>\n

\u5bf9\u8c61\u5934\uff08 Header \uff09 \u5b9e\u4f8b\u6570\u636e\uff08 Instance Data \uff09 \u5bf9\u9f50\u586b\u5145\uff08 Padding \uff09<\/p>\n

###\u5b9e\u4f8b\u6570\u636e \u5b9e\u4f8b\u6570\u636e\u90e8\u5206\u5c31\u662f\u6210\u5458\u53d8\u91cf\u7684\u503c\uff0c\u5176\u4e2d\u5305\u62ec\u7236\u7c7b\u6210\u5458\u53d8\u91cf\u548c\u672c\u7c7b\u6210\u5458\u53d8\u91cf\u3002<\/p>\n

\u6211\u7684\u7591\u95ee\u662f,\u5b9e\u4f8b\u6570\u636e\u8fd9\u90e8\u5206(\u6210\u5458\u53d8\u91cf)\u662f\u5426\u5b58\u7684\u662f\u5730\u5740\u503c\u6307\u5411\u5806\u4e2d\u7684\u53e6\u4e00\u4e2a\u5bf9\u8c61? \u7531\u4e8e\u5bf9\u8c61\u521b\u5efa\u5e94\u8be5\u662f\u5148\u7533\u8bf7\u5185\u5b58(\u5bf9\u8c61\u6240\u9700\u5185\u5b58\u7684\u5927\u5c0f\u5728\u7c7b\u52a0\u8f7d\u5b8c\u6210\u540e\u4fbf\u53ef\u5b8c\u5168\u786e\u5b9a)\u6240\u4ee5\u5728\u5806\u5185\u5b58\u4e2d\u76f8\u540c\u7c7b\u6240\u521b\u5efa\u5730\u5bf9\u8c61\u5e94\u8be5\u662f\u4e00\u6837\u5927\u7684\u5440,\u5c31\u62ff hashmap \u6765\u8bf4,hashmap \u5185\u90e8\u7ef4\u62a4\u7684 node \u6570\u7ec4,\u5728\u6269\u5bb9\u7684\u65f6\u5019\u4f1a\u65b0\u5efa\u4e00\u4e2a\u6570\u7ec4,\u5e76\u5c06\u6307\u9488\u6307\u5411\u4ed6,\u5982\u679c\u5b9e\u4f8b\u6570\u636e\u8fd9\u90e8\u5206\u662f\u5b58\u7684\u6570\u7ec4\u672c\u8eab\u7684\u8bdd,\u6839\u672c\u5c31\u6ca1\u529e\u6cd5\u6269\u5bb9\u4e86<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (3<\/span>) <\/div>\n
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    \u8cc7\u6df1\u5927\u4f6c : guyeu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6210\u5458\u53d8\u91cf\u7684\u503c\u663e\u7136\u4fdd\u5b58\u7684\u662f\u5f15\u7528\u800c\u4e0d\u662f\u6570\u636e\u672c\u8eab\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : secondwtq <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u8fd9\u4e2a\u95ee\u9898\u8ddf https:\/\/v2ex.com\/t\/663545 \u8fd9\u91cc\u7684\u4e3b\u662f\u7c7b\u4f3c\u7684\uff1a\u6df7\u6dc6\u4e86 Primitive \u503c\u548c Reference \u503c
    \u5b66\u4e60 C++ \u4e5f\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff08\u5176\u5b9e\u5b66 C \u5c31\u53ef\u4ee5\uff0c\u4e0d\u8fc7 C \u592a\u4e71\u4e86\uff09<\/p>\n

    Primitive \u503c\u662f\u53ef\u4ee5\u76f4\u63a5\u5b58\u7684\uff0cReference \u503c\u59cb\u7ec8\u5b58\u7684\u662f\u6307\u5411\u53e6\u4e00\u4e2a\u5bf9\u8c61\u7684\u6307\u9488\u3002\u800c\u4ece\u5e95\u5c42\u7684\u89d2\u5ea6\uff0c\u628a Reference \u5f53\u6210\u6307\u9488 Primitive \u770b\u5f85\uff0c\u8fd9\u95ee\u9898\u5c31\u89e3\u51b3\u4e86\u3002<\/p>\n

    \u4e3b\u60f3\u60f3\u5c31\u77e5\u9053\u5982\u679c\u201cA \u5bf9\u8c61\u7684\u5b9e\u4f8b\u6570\u636e\u90e8\u5206\u5b58\u7684\u662f\u6307\u5411 B \u5bf9\u8c61\u7684\u5730\u5740\u201d\uff0c\u90a3\u4e48 B \u5bf9\u8c61\u7684\u5b9e\u4f8b\u6570\u636e\u5b58\u5728\u54ea\u91cc\uff1f\u5b58\u4e00\u4e2a\u6307\u5411 C \u5bf9\u8c61\u7684\u6307\u9488\uff1f\u8fd9\u5c31\u4e00\u76f4\u5957\u5a03\u4e86
    \u800c\u4e14\u4e3b\u660e\u663e\u662f\u77e5\u9053\u201c\u65b0\u5efa\u4e00\u4e2a\u6570\u7ec4,\u5e76\u5c06\u6307\u9488\u6307\u5411\u4ed6\u201d\u7684 … <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : yangyuhan12138 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @guyeu \u6211\u521a Google \u4e86\u4e00\u4e0b\u53d1\u73b0\u786e\u5b9e\u662f\u6211\u50cf\u8fd9\u6837 \u662f\u5b58\u7684 oops \uff08 Ordinary Object Pointers \uff09
    @secondwtq \u6211\u61c2\u4e86 \u57fa\u672c\u7c7b\u578b\u76f4\u63a5\u5b58,\u5f15\u7528\u7c7b\u578b\u5b58\u6307\u9488 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    HotSpot \u865a\u62df\u673a\u5bf9\u8c61\u7684\u5b9e\u4f8b\u6570…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/94401"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=94401"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/94401\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=94401"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=94401"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=94401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}