{"id":422,"date":"2020-02-14T14:43:50","date_gmt":"2020-02-14T06:43:50","guid":{"rendered":"https:\/\/blog.cqdefxxx.com\/?p=422"},"modified":"2020-02-14T14:43:50","modified_gmt":"2020-02-14T06:43:50","slug":"%e6%98%be%e5%bc%8f%e5%8e%9f%e5%9e%8b%e4%b8%8e%e9%9a%90%e5%bc%8f%e5%8e%9f%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/blog.viter.top\/index.php\/2020\/02\/14\/%e6%98%be%e5%bc%8f%e5%8e%9f%e5%9e%8b%e4%b8%8e%e9%9a%90%e5%bc%8f%e5%8e%9f%e5%9e%8b\/","title":{"rendered":"\u663e\u5f0f\u539f\u578b\u4e0e\u9690\u5f0f\u539f\u578b"},"content":{"rendered":"<pre class=\"pure-highlightjs\"><code class=\"\">&lt;!DOCTYPE html&gt;\n&lt;html lang=\"en\"&gt;\n&lt;head&gt;\n  &lt;meta charset=\"UTF-8\"&gt;\n  &lt;title&gt;02_\u663e\u5f0f\u539f\u578b\u4e0e\u9690\u5f0f\u539f\u578b&lt;\/title&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n&lt;!--\n1. \u6bcf\u4e2a\u51fd\u6570function\u90fd\u6709\u4e00\u4e2aprototype\uff0c\u5373\u663e\u5f0f\u539f\u578b(\u5c5e\u6027)\n2. \u6bcf\u4e2a\u5b9e\u4f8b\u5bf9\u8c61\u90fd\u6709\u4e00\u4e2a__proto__\uff0c\u53ef\u79f0\u4e3a\u9690\u5f0f\u539f\u578b(\u5c5e\u6027)\n3. \u5bf9\u8c61\u7684\u9690\u5f0f\u539f\u578b\u7684\u503c\u4e3a\u5176\u5bf9\u5e94\u6784\u9020\u51fd\u6570\u7684\u663e\u5f0f\u539f\u578b\u7684\u503c\n4. \u5185\u5b58\u7ed3\u6784(\u56fe)\n5. \u603b\u7ed3:\n  * \u51fd\u6570\u7684prototype\u5c5e\u6027: \u5728\u5b9a\u4e49\u51fd\u6570\u65f6\u81ea\u52a8\u6dfb\u52a0\u7684, \u9ed8\u8ba4\u503c\u662f\u4e00\u4e2a\u7a7aObject\u5bf9\u8c61\n  * \u5bf9\u8c61\u7684__proto__\u5c5e\u6027: \u521b\u5efa\u5bf9\u8c61\u65f6\u81ea\u52a8\u6dfb\u52a0\u7684, \u9ed8\u8ba4\u503c\u4e3a\u6784\u9020\u51fd\u6570\u7684prototype\u5c5e\u6027\u503c\n  * \u7a0b\u5e8f\u5458\u80fd\u76f4\u63a5\u64cd\u4f5c\u663e\u5f0f\u539f\u578b, \u4f46\u4e0d\u80fd\u76f4\u63a5\u64cd\u4f5c\u9690\u5f0f\u539f\u578b(ES6\u4e4b\u524d)\n--&gt;\n&lt;script type=\"text\/javascript\"&gt;\n  \/\/\u5b9a\u4e49\u6784\u9020\u51fd\u6570\n  function Fn() {   \/\/ \u5185\u90e8\u8bed\u53e5: this.prototype = {}\n\n  }\n  \/\/ 1. \u6bcf\u4e2a\u51fd\u6570function\u90fd\u6709\u4e00\u4e2aprototype\uff0c\u5373\u663e\u5f0f\u539f\u578b\u5c5e\u6027, \u9ed8\u8ba4\u6307\u5411\u4e00\u4e2a\u7a7a\u7684Object\u5bf9\u8c61\n  console.log(Fn.prototype)\n  \/\/ 2. \u6bcf\u4e2a\u5b9e\u4f8b\u5bf9\u8c61\u90fd\u6709\u4e00\u4e2a__proto__\uff0c\u53ef\u79f0\u4e3a\u9690\u5f0f\u539f\u578b\n  \/\/\u521b\u5efa\u5b9e\u4f8b\u5bf9\u8c61\n  var fn = new Fn()  \/\/ \u5185\u90e8\u8bed\u53e5: this.__proto__ = Fn.prototype\n  console.log(fn.__proto__)\n  \/\/ 3. \u5bf9\u8c61\u7684\u9690\u5f0f\u539f\u578b\u7684\u503c\u4e3a\u5176\u5bf9\u5e94\u6784\u9020\u51fd\u6570\u7684\u663e\u5f0f\u539f\u578b\u7684\u503c\n  console.log(Fn.prototype===fn.__proto__) \/\/ true\n  \/\/\u7ed9\u539f\u578b\u6dfb\u52a0\u65b9\u6cd5\n  Fn.prototype.test = function () {\n    console.log('test()')\n  }\n  \/\/\u901a\u8fc7\u5b9e\u4f8b\u8c03\u7528\u539f\u578b\u7684\u65b9\u6cd5\n  fn.test()\n\n\n\n&lt;\/script&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;<\/code><\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&lt;!DOCTYPE html&gt; &lt;html lang=&#8221;en&#8221;&gt; &lt;head&gt; &lt;met","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[5],"_links":{"self":[{"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/posts\/422"}],"collection":[{"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/comments?post=422"}],"version-history":[{"count":0,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/posts\/422\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/media?parent=422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/categories?post=422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/tags?post=422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}