5645564454545645645645656
2019-06-18 11:38
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项目名称:MOOON 地址:三亚 面积:1500平米 ENTRY NAME : MOOON ADDRESS : SanYa ACREAGE : 1500m²
new 出来的实例 this 指向哪 怎么修改 new 出来的 this 的指向(当时说的 new 出来的指向不能修改) 换了个问法,怎么在构造函数中修改 this 的指向。说了个借用构造函数也没说对不对 ClassA 的 prototype 是啥,有啥 classA 的 proto 是啥