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eat: 更新代码示例 (#1140)

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Zhou Fang
2021-06-21 22:57:01 +08:00
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source/02_language_guide/04_Collection_Types.md
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@ -37,7 +37,7 @@ Swift 中数组的完整写法为 `Array<Element>`，其中 `Element` 是这个
你可以使用构造语法来创建一个由特定数据类型构成的空数组： 你可以使用构造语法来创建一个由特定数据类型构成的空数组：
```swift ```swift
var someInts = [Int]() var someInts: [Int] = []
print("someInts is of type [Int] with \(someInts.count) items.") print("someInts is of type [Int] with \(someInts.count) items.")
// 打印“someInts is of type [Int] with 0 items.” // 打印“someInts is of type [Int] with 0 items.”
``` ```
@ -473,7 +473,7 @@ Swift 的字典使用 `Dictionary<Key, Value>` 定义，其中 `Key` 是一种
你可以像数组一样使用构造语法创建一个拥有确定类型的空字典： 你可以像数组一样使用构造语法创建一个拥有确定类型的空字典：
```swift ```swift
var namesOfIntegers = [Int: String]() var namesOfIntegers: [Int: String] = [:]
// namesOfIntegers 是一个空的 [Int: String] 字典 // namesOfIntegers 是一个空的 [Int: String] 字典
``` ```