JS封装和继承-入门级

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  • 2022-04-12 04:38
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Javascript是一种基于对象(object-based)的语言,你遇到的所有东西几乎都是对象。但是,它又不是一种真正的面向对象编程(OOP)语言,因为它的语法中没有class(类)。
JS封装和继承.rar
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内容介绍
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/626b9c7d7ae5df2aa7181747/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" 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class="_ _1"></span>&#23792;</div><div class="t m0 x2 h3 y4 ff2 fs0 fc1 sc0 ls0 ws0">&#26085;&#26399;&#65306;&#58900;<span class="ff3">2<span class="_ _1"></span>010<span class="_ _2"> </span><span class="ff2">&#24180;<span class="_ _2"> </span></span>5<span class="_ _2"> </span><span class="ff2">&#26376;<span class="_ _2"> </span></span>23<span class="_ _2"> </span><span class="ff2">&#26085;</span></span></div><div class="t m0 x2 h3 y5 ff2 fs0 fc2 sc0 ls0 ws0">&#36825;&#20010;&#31995;<span class="_ _0"></span>&#21015;&#30340;<span class="fc3">&#31532;&#19968;<span class="_ _1"></span>&#37096;&#20998;<span class="fc2">&#65292;&#20027;&#35201;&#20171;<span class="_ _0"></span>&#32461;&#20102;&#22914;<span class="_ _0"></span>&#20309;<span class="ff3">"</span>&#23553;&#35013;<span class="ff3">"</span>&#25968;&#25454;&#21644;<span class="_ _1"></span>&#26041;&#27861;&#65292;&#20197;&#21450;<span class="_ _0"></span>&#22914;&#20309;&#20174;<span class="_ 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_1"></span>nctio<span class="_ _0"></span>n An<span class="_ _1"></span>imal<span class="_ _0"></span>(){</span></div><div class="t m0 x3 h3 y9 ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;&#12288;<span class="_ _0"></span>&#12288;<span class="ff4">th<span class="_ _0"></span>is.<span class="_ _1"></span>specie<span class="_ _1"></span>s = "<span class="ff2">&#21160;&#29289;</span>"<span class="_ _0"></span>;</span></div><div class="t m0 x3 h3 ya ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;<span class="ff4">}</span></div><div class="t m0 x2 h3 yb ff2 fs0 fc2 sc0 ls0 ws0">&#36824;&#26377;&#19968;<span class="_ _0"></span>&#20010;<span class="ff3">"</span>&#29483;<span class="ff3">"</span>&#23545;&#35937;&#30340;<span class="_ _0"></span>&#26500;&#36896;&#20989;<span class="_ _0"></span>&#25968;&#12290;</div><div class="t m0 x3 h3 yc ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;<span class="ff4">fu<span class="_ _1"></span>nctio<span class="_ _0"></span>n Ca<span class="_ _1"></span>t(na<span class="_ _0"></span>me,c<span class="_ _1"></span>olor)<span class="_ _1"></span>{</span></div><div class="t m0 x3 h3 yd ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;&#12288;<span class="_ _0"></span>&#12288;<span class="ff4">th<span class="_ _0"></span>is.<span class="_ _1"></span>name = <span class="_ _1"></span>name<span class="_ _0"></span>;</span></div><div class="t m0 x3 h3 ye ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;&#12288;<span class="_ _0"></span>&#12288;<span class="ff4">th<span class="_ _0"></span>is.<span class="_ _1"></span>color =<span class="_ _1"></span> colo<span class="_ _1"></span>r;</span></div><div class="t m0 x3 h3 yf ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;<span class="ff4">}</span></div><div class="t m0 x2 h3 y10 ff2 fs0 fc2 sc0 ls0 ws0">&#24590;&#26679;&#25165;<span class="_ _0"></span>&#33021;&#20351;<span class="ff3">"</span>&#29483;<span class="ff3">"</span>&#32487;&#25215;<span class="ff3">"</span>&#21160;&#29289;<span class="ff3">"</span>&#21602;<span class="_ _0"></span>&#65311;</div><div class="t m0 x2 h3 y11 ff2 fs0 fc2 sc1 ls0 ws0">&#19968;&#12289;&#58900;&#26500;<span class="_ _1"></span>&#36896;&#20989;&#25968;&#32465;&#23450;</div><div class="t m0 x2 h3 y12 ff2 fs0 fc2 sc0 ls0 ws0">&#31532;&#19968;&#31181;<span class="_ _0"></span>&#26041;&#27861;&#20063;<span class="_ _1"></span>&#26159;&#26368;&#31616;&#21333;&#30340;<span class="_ _0"></span>&#26041;&#27861;&#65292;<span class="_ _1"></span>&#20351;&#29992;<span class="_ _2"> </span><span class="ff3">call<span class="_ _2"> </span></span>&#25110;<span class="_ _2"> </span><span class="ff3">a<span class="_ _0"></span>pp<span class="_ _0"></span>ly<span class="_ _2"> </span><span class="ff2">&#26041;&#27861;<span class="_ _0"></span>&#65292;&#23558;&#29238;<span class="_ _0"></span>&#23545;&#35937;&#30340;<span class="_ _1"></span>&#26500;&#36896;&#20989;&#25968;&#32465;<span class="_ _0"></span>&#23450;&#22312;&#23376;</span></span></div><div class="t m0 x2 h3 y13 ff2 fs0 fc2 sc0 ls0 ws0">&#23545;&#35937;&#19978;<span class="_ _0"></span>&#65292;&#21363;&#22312;<span class="_ _1"></span>&#23376;&#23545;&#35937;&#26500;&#36896;<span class="_ _0"></span>&#20989;&#25968;&#20013;<span class="_ _1"></span>&#21152;&#19968;&#34892;&#65306;</div><div class="t m0 x3 h3 y14 ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;<span class="ff4">fu<span class="_ _1"></span>nctio<span class="_ _0"></span>n Ca<span class="_ _1"></span>t(na<span class="_ _0"></span>me,c<span class="_ _1"></span>olor)<span class="_ _1"></span>{</span></div><div class="t m0 x3 h3 y15 ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;&#12288;<span class="_ _0"></span>&#12288;<span class="ff5">An<span class="_ _0"></span>ima<span class="_ _1"></span>l.appl<span class="_ _1"></span>y(thi<span class="_ _0"></span>s, a<span class="_ _1"></span>rgum<span class="_ _0"></span>ents<span class="_ _1"></span>);</span></div><div class="t m0 x3 h3 y16 ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;&#12288;<span class="_ _0"></span>&#12288;<span class="ff4">th<span class="_ _0"></span>is.<span class="_ _1"></span>name = <span class="_ _1"></span>name<span class="_ _0"></span>;</span></div><div class="t m0 x3 h3 y17 ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;&#12288;<span class="_ _0"></span>&#12288;<span class="ff4">th<span class="_ _0"></span>is.<span class="_ _1"></span>color =<span class="_ _1"></span> colo<span class="_ _1"></span>r;</span></div><div class="t m0 x3 h3 y18 ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;<span class="ff4">}</span></div><div class="t m0 x3 h3 y19 ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;<span class="ff4">va<span class="_ _1"></span>r cat<span class="_ _0"></span>1 = <span class="_ _1"></span>new C<span class="_ _0"></span>at(<span class="_ _1"></span>"<span class="_ _3"></span><span class="ff2">&#22823;&#27611;</span>",<span class="_ _1"></span>"<span class="_ _3"></span><span class="ff2">&#40644;&#33394;</span>"<span class="_ _0"></span>);</span></div><div class="t m0 x3 h3 y1a ff2 fs0 fc2 sc0 ls0 ws0">&#12288;&#12288;<span class="ff4">al<span class="_ _1"></span>ert(c<span class="_ _0"></span>at<span class="_ _0"></span>1.s<span class="_ _0"></span>pec<span class="_ _0"></span>ies)<span class="_ _1"></span>; // <span class="ff2">&#21160;&#29289;</span></span></div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>
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