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Update 22_Generics.md

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Jie Liang
2023-02-17 09:46:18 -06:00
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parent 4dc673e444
commit fe2c9ede92
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source/02_language_guide/22_Generics.md
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@ -123,7 +123,7 @@ swapTwoValues(&someString, &anotherString)
下图展示了入栈（push）和出栈（pop）的行为：
![](https://docs.swift.org/swift-book/_images/stackPushPop_2x.png)
![](https://docs.swift.org/swift-book/images/stackPushPop~dark@2x.png)
1. 现在有三个值在栈中。
2. 第四个值被压入到栈的顶部。
@ -186,7 +186,7 @@ stackOfStrings.push("cuatro")
下图展示了 `stackOfStrings` 如何将这四个值压栈：
![](https://docs.swift.org/swift-book/_images/stackPushedFourStrings_2x.png)
![](https://docs.swift.org/swift-book/images/stackPushedFourStrings~dark@2x.png)
移除并返回栈顶部的值“cuatro”，即出栈：
@ -197,7 +197,7 @@ let fromTheTop = stackOfStrings.pop()
下图展示了如何将顶部的值出栈：
![](https://docs.swift.org/swift-book/_images/stackPoppedOneString_2x.png)
![](https://docs.swift.org/swift-book/images/stackPoppedOneString~dark@2x.png)
## 泛型扩展 {#extending-a-generic-type}