freeCodeCamp/guide/chinese/certifications/javascript-algorithms-and-d.../object-oriented-programming/use-dot-notation-to-access-.../index.md

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title localeTitle
Use Dot Notation to Access the Properties of an Object 使用点表示法访问对象的属性

使用点表示法访问对象的属性

方法:

以下代码将简单地从obj对象中打印property1

let obj = { 
  property1 = 1, 
  property2 = 2 
 }; 
 
 console.log(obj.property1); 

遵循此逻辑,使用console.log操作将property1property2都打印到屏幕。

解:

let dog = { 
  name: "Spot", 
  numLegs: 4 
 }; 
 // Add your code below this line 
 console.log(dog.name); 
 console.log(dog.numLegs);