update Control Flow
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@ -30,9 +30,9 @@ let numberOfLegs = ["spider": 8, "ant": 6, "cat": 4]
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for (animalName, legCount) in numberOfLegs {
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for (animalName, legCount) in numberOfLegs {
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print("\(animalName)s have \(legCount) legs")
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print("\(animalName)s have \(legCount) legs")
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}
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}
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// cats have 4 legs
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// ants have 6 legs
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// ants have 6 legs
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// spiders have 8 legs
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// spiders have 8 legs
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// cats have 4 legs
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```
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```
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字典的内容理论上是无序的,遍历元素时的顺序是无法确定的。将元素插入字典的顺序并不会决定它们被遍历的顺序。关于数组和字典的细节,参见[集合类型](./04_Collection_Types.md)。
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字典的内容理论上是无序的,遍历元素时的顺序是无法确定的。将元素插入字典的顺序并不会决定它们被遍历的顺序。关于数组和字典的细节,参见[集合类型](./04_Collection_Types.md)。
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