Merge pull request #561 from 949478479/gh-pages

校对 Declarations
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overtrue
2015-12-23 18:22:29 +08:00
2 changed files with 832 additions and 625 deletions

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@ -198,6 +198,7 @@ print("Car: \(car.description)")
// Car: traveling at 25.0 miles per hour in gear 3 // Car: traveling at 25.0 miles per hour in gear 3
``` ```
<a name="overriding_property_observers"></a>
#### 重写属性观察器Property Observer #### 重写属性观察器Property Observer
你可以通过重写属性为一个继承来的属性添加属性观察器。这样一来,当继承来的属性值发生改变时,你就会被通知到,无论那个属性原本是如何实现的。关于属性观察器的更多内容,请看[属性观察器](../chapter2/10_Properties.html#property_observers)。 你可以通过重写属性为一个继承来的属性添加属性观察器。这样一来,当继承来的属性值发生改变时,你就会被通知到,无论那个属性原本是如何实现的。关于属性观察器的更多内容,请看[属性观察器](../chapter2/10_Properties.html#property_observers)。

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