Swift-type properties (class static properties) and class methods (class static methods)

1, struct struct and enumeration enum static property, static method using the Static keyword

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struct Account {      var amount : Double = 0.0                 //账户金额      var owner : String = ""//账户名      static var interestRate : Double = 0.668  //利率     static func interestBy(amount : Double) -> Double {         return interestRate * amount      } }

2, class-type attribute, type method using class keyword

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class Account {    var amount : Double = 0.0               // 账户金额      var owner : String = ""// 账户名       class var staticProp : Double {         return 0.668      }      class func interestBy(amount : Double) -> Double {         return 0.8886 * amount      }}    //访问静态属性  println(Account.staticProp)

Swift-type properties (class static properties) and class methods (class static methods)