javascript中的inherit是什么意思《javascript权威指南》第126页中有一段这样的代码var unitcircle={r:1};var c=inherit(unitcircle);c.x=1;c.y=1;c.r=2;unitcircle.r;浏览器执行后提示Uncaught ReferenceError: inherit is not define
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![javascript中的inherit是什么意思《javascript权威指南》第126页中有一段这样的代码var unitcircle={r:1};var c=inherit(unitcircle);c.x=1;c.y=1;c.r=2;unitcircle.r;浏览器执行后提示Uncaught ReferenceError: inherit is not define](/uploads/image/z/13590406-46-6.jpg?t=javascript%E4%B8%AD%E7%9A%84inherit%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%E3%80%8Ajavascript%E6%9D%83%E5%A8%81%E6%8C%87%E5%8D%97%E3%80%8B%E7%AC%AC126%E9%A1%B5%E4%B8%AD%E6%9C%89%E4%B8%80%E6%AE%B5%E8%BF%99%E6%A0%B7%E7%9A%84%E4%BB%A3%E7%A0%81var+unitcircle%3D%7Br%3A1%7D%3Bvar+c%3Dinherit%28unitcircle%29%3Bc.x%3D1%3Bc.y%3D1%3Bc.r%3D2%3Bunitcircle.r%3B%E6%B5%8F%E8%A7%88%E5%99%A8%E6%89%A7%E8%A1%8C%E5%90%8E%E6%8F%90%E7%A4%BAUncaught+ReferenceError%3A+inherit+is+not+define)
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