Merge branch 'master' of https://github.com/torgeek/learnxinyminutes-docs

1 files changed, 24 insertions, 24 deletions

diff --git a/zh-cn/swift-cn.html.markdown b/zh-cn/swift-cn.html.markdown
index cba9252d..18bc52ed 100644
--- a/zh-cn/swift-cn.html.markdown
+++ b/zh-cn/swift-cn.html.markdown
@@ -110,7 +110,7 @@ anyObjectVar = "Changed value to a string, not good practice, but possible."
 
 
 //
-// Mark: 数组与字典（关联数组）
+// MARK: 数组与字典（关联数组）
 //
 
 /*
@@ -214,9 +214,9 @@ func greet(name: String, day: String) -> String {
 }
 greet("Bob", day: "Tuesday")
 
-// 第一个参数表示外部参数名和内部参数名使用同一个名称。
+// 第一个参数`_`表示不使用外部参数名，忽略`_`表示外部参数名和内部参数名使用同一个名称。
 // 第二个参数表示外部参数名使用 `externalParamName` ，内部参数名使用 `localParamName`
-func greet2(requiredName requiredName: String, externalParamName localParamName: String) -> String {
+func greet2(_ requiredName: String, externalParamName localParamName: String) -> String {
     return "Hello \(requiredName), the day is \(localParamName)"
 }
 greet2(requiredName:"John", externalParamName: "Sunday")    // 调用时，使用命名参数来指定参数的值
@@ -250,7 +250,7 @@ var increment = makeIncrementer()
 increment(7)
 
 // 强制进行指针传递 (引用传递)，使用 `inout` 关键字修饰函数参数
-func swapTwoInts(inout a: Int, inout b: Int) {
+func swapTwoInts(a: inout Int, b: inout Int) {
     let tempA = a
     a = b
     b = tempA
@@ -445,47 +445,47 @@ if let circle = myEmptyCircle {
 // 枚举可以像类一样，拥有方法
 
 enum Suit {
-    case Spades, Hearts, Diamonds, Clubs
+    case spades, hearts, diamonds, clubs
     func getIcon() -> String {
         switch self {
-        case .Spades: return "♤"
-        case .Hearts: return "♡"
-        case .Diamonds: return "♢"
-        case .Clubs: return "♧"
+        case .spades: return "♤"
+        case .hearts: return "♡"
+        case .diamonds: return "♢"
+        case .clubs: return "♧"
         }
     }
 }
 
 // 当变量类型明确指定为某个枚举类型时，赋值时可以省略枚举类型
-var suitValue: Suit = .Hearts
+var suitValue: Suit = .hearts
 
 // 非整型的枚举类型需要在定义时赋值
 enum BookName: String {
-    case John = "John"
-    case Luke = "Luke"
+    case john = "John"
+    case luke = "Luke"
 }
-print("Name: \(BookName.John.rawValue)")
+print("Name: \(BookName.john.rawValue)")
 
 // 与特定数据类型关联的枚举
 enum Furniture {
     // 和 Int 型数据关联的枚举记录
-    case Desk(height: Int)
+    case desk(height: Int)
     // 和 String, Int 关联的枚举记录
-    case Chair(brand: String, height: Int)
+    case chair(brand: String, height: Int)
 
     func description() -> String {
         switch self {
-        case .Desk(let height):
+        case .desk(let height):
             return "Desk with \(height) cm"
-        case .Chair(let brand, let height):
+        case .chair(let brand, let height):
             return "Chair of \(brand) with \(height) cm"
         }
     }
 }
 
-var desk: Furniture = .Desk(height: 80)
+var desk: Furniture = .desk(height: 80)
 print(desk.description())     // "Desk with 80 cm"
-var chair = Furniture.Chair(brand: "Foo", height: 40)
+var chair = Furniture.chair(brand: "Foo", height: 40)
 print(chair.description())    // "Chair of Foo with 40 cm"
 
 
@@ -521,7 +521,7 @@ class MyShape: Rect {
 
         // 在 optional 属性，方法或下标运算符后面加一个问号，可以优雅地忽略 nil 值，返回 nil。
         // 这样就不会引起运行时错误 (runtime error)
-        if let reshape = self.delegate?.canReshape?() where reshape {
+        if let reshape = self.delegate?.canReshape?() {
             // 注意语句中的问号
             self.delegate?.reshape?()
         }
@@ -575,10 +575,10 @@ print(foundAtIndex == 2) // true
 // 自定义运算符可以以下面的字符打头:
 //      / = - + * % < > ! & | ^ . ~
 // 甚至是 Unicode 的数学运算符等
-prefix operator !!! {}
+prefix operator !!!
 
 // 定义一个前缀运算符，使矩形的边长放大三倍
-prefix func !!! (inout shape: Square) -> Square {
+prefix func !!! (shape: inout Square) -> Square {
     shape.sideLength *= 3
     return shape
 }
@@ -591,8 +591,8 @@ print(mySquare.sideLength) // 4
 print(mySquare.sideLength) // 12
 
 // 运算符也可以是泛型
-infix operator <-> {}
-func <-><T: Equatable> (inout a: T, inout b: T) {
+infix operator <->
+func <-><T: Equatable> (a: inout T, b: inout T) {
     let c = a
     a = b
     b = c