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1、测试代码:
1 <html> 2 3 <script type="text/javascript"> 4 window.onload = function() 5 { 6 var b = new TbaseB(1); 7 b.SayHi(); 8 }; 9 10 function TbaseA(_i) 11 { 12 } 13 14 TbaseA.prototype = 15 { 16 SayHi : function() 17 { 18 console.log("TbaseA.SayHi()"); 19 console.log("this.Fb(TbaseA) : "+this.Fb); 20 }, 21 }; 22 23 function TbaseB(_i) 24 { 25 this.baseA = TbaseA; 26 this.baseA(_i); 27 delete this.baseA; 28 29 this.Fb = 1; 30 } 31 32 TbaseB.prototype = 33 { 34 SayHi : function() 35 { 36 TbaseA.prototype.SayHi.call(this); 37 console.log("TbaseB.SayHi()"); 38 console.log("this.Fb(TbaseB) : "+this.Fb); 39 }, 40 }; 41 42 43 44 </script> 45 46 </html>
chrome(版本 49.0.2623.112 m) 控制台输出信息为:
1 zzz.html:18 TbaseA.SayHi() 2 zzz.html:19 this.Fb(TbaseA) : 1 3 zzz.html:37 TbaseB.SayHi() 4 zzz.html:38 this.Fb(TbaseB) : 1
2、
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原文地址:http://www.cnblogs.com/h5skill/p/5415764.html