Swift - 类型属性，类静态属性和类方法

structAccount{

varamount :Double= 0.0//账户金额

varowner :String=""//账户名

staticvarinterestRate :Double= 0.668//利率

staticfuncinterestBy(amount :Double) ->Double{

returninterestRate * amount

}

}

classAccount{

varamount :Double= 0.0// 账户金额

varowner :String=""// 账户名

classvarstaticProp :Double{

return0.668

}

classfuncinterestBy(amount :Double) ->Double{

return0.8886 * amount

}

}

//访问静态属性

println(Account.staticProp)