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图片直接使用HTML代码，以修改显示大小

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Shiny Zhu
2014-06-08 09:03:20 +08:00
parent d3d9dd94df
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source/chapter2/10_Properties.md
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@ -152,4 +152,8 @@ println("square.origin is now at (\(square.origin.x), \(square.origin.y))")
`center`属性之后被设置了一个新的值`(15, 15)`，表示向右上方移动正方形到如图所示橙色正方形的位置。设置属性`center`的值会调用setter来修改属性`origin`的`x`和`y`的值，从而实现移动正方形到新的位置。
![Computed Properties sample](https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/Art/computedProperties_2x.png)
<img src="https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/Art/computedProperties_2x.png" alt="Computed Properties sample" width="388" height="387" />
### Setter的便捷方式