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                [CSDN JavaScript中原型對象的徹底理解](https://blog.csdn.net/u012468376/article/details/53121081#commentBox) [JS基礎-函數、對象和原型、原型鏈的關系](https://juejin.im/post/5d622f14f265da03a1486408#heading-0) [用自己的方式(圖)理解constructor、prototype、__proto__和原型鏈](https://juejin.im/post/5cc99fdfe51d453b440236c3) ~~~ function erzi?()?{?} let erziFun?=?new erzi() console.log(erziFun.constructor)?//?constructor指向的是實例化對象erzi的構造函數 ~~~ 構造函數 > prototype(原型對象) > constructor(原型對象屬性) > 構造函數 1. 私有的屬性(方法)在創建實例對象后可以使用 2. 掛在原型鏈上的屬性(方法),只有在實例對象的原型鏈中才能找到并且使用 3. ‘私有屬性’如果和‘原型鏈屬性’重名,在‘實例化對象’時候使用這個屬性,這時使用的屬性是私有屬性 ![](https://img.kancloud.cn/9c/ee/9cee9c6ef4071609747238f6bad1cf21_741x280.png)
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