1330: languageguide-propertiesmd⭐️⭐️⭐️⭐️⭐️ #1360
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loshoc
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@4dmoonlight @bh3236 有空请帮忙 Review Thx! |
4dmoonlight
reviewed
Sep 23, 2024
| whereas computed properties calculate (rather than store) a value. | ||
| Computed properties are provided by classes, structures, and enumerations. | ||
| Stored properties are provided only by classes and structures. | ||
| *属性*将值与特定的类、结构或枚举关联。存储属性将常量和变量值作为实例的一部分进行存储，而计算属性则计算（而不是存储）一个值。计算属性由类、结构和枚举提供。存储属性仅由类和结构提供。 |
4dmoonlight
reviewed
Sep 23, 2024
| @@ -102,38 +77,31 @@ rangeOfThreeItems.firstValue = 6 | |||
| let length: Int | |||
| } | |||
| -> var rangeOfThreeItems = FixedLengthRange(firstValue: 0, length: 3) | |||
| // the range represents integer values 0, 1, and 2 | |||
4dmoonlight
reviewed
Sep 23, 2024
| ``` | ||
|
|
||
| <!-- | ||
| - test: `storedProperties-err` | ||
|
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| ```swifttest | ||
| -> let rangeOfFourItems = FixedLengthRange(firstValue: 0, length: 4) | ||
| // this range represents integer values 0, 1, 2, and 3 | ||
| // 该区间表示整数 0，1，2，3 |
4dmoonlight
reviewed
Sep 23, 2024
| This behavior is due to structures being *value types*. | ||
| When an instance of a value type is marked as a constant, | ||
| so are all of its properties. | ||
| 这种行为是由于结构体属于*值类型*。当值类型的实例被声明为常量的时候，它的所有属性也就成了常量。 |
4dmoonlight
reviewed
Sep 23, 2024
| whereas computed properties calculate (rather than store) a value. | ||
| Computed properties are provided by classes, structures, and enumerations. | ||
| Stored properties are provided only by classes and structures. | ||
| *属性*将值与特定的类、结构或枚举关联。存储属性将常量和变量值作为实例的一部分进行存储，而计算属性则计算（而不是存储）一个值。计算属性由类、结构和枚举提供。存储属性仅由类和结构提供。 |
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complete 1330-language guide-properties