# CanvasContext.save()

CanvasContext 是旧版的接口，新版 [Canvas 2D](https://developers.weixin.qq.com/miniprogram/dev/component/canvas.html) 接口与 Web 一致

从基础库 [2.9.0](1003706) 开始，本接口停止维护，请使用 [RenderingContext](/miniprogram/dev/api/canvas/RenderingContext) 代替

> __小程序插件__：支持

> 相关文档: [旧版画布迁移指南](/miniprogram/dev/framework/ability/canvas-legacy-migration.md)、[canvas 组件介绍](https://developers.weixin.qq.com/miniprogram/dev/component/canvas.html)

## 功能描述

保存绘图上下文。

## 示例代码

```javascript
const ctx = wx.createCanvasContext('myCanvas')

// save the default fill style
ctx.save()
ctx.setFillStyle('red')
ctx.fillRect(10, 10, 150, 100)

// restore to the previous saved state
ctx.restore()
ctx.fillRect(50, 50, 150, 100)

ctx.draw()
```
![](@program/dev/image/canvas/save-restore.png)