freeCodeCamp/guide/chinese/certifications/javascript-algorithms-and-d.../object-oriented-programming/create-a-method-on-an-object/index.md

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---
title: Create a Method on an Object
localeTitle: 在对象上创建方法
---
## 在对象上创建方法
### 方法:
必须在对象本身内初始化对象函数。这在以下代码中进行了演示。
```javascript
let obj = {
property1 = 1,
function1: function() {
//Code to be exectued
}
};
```
### 解:
```javascript
let dog = {
name: "Spot",
numLegs: 4,
sayLegs: function() {
return "This dog has " + dog.numLegs + " legs.";
}
};
dog.sayLegs();
```