swift-声明计算属性以调用具有多个返回值的函数

Question

I want to declare 3 computed properties that will call a function calculate that will return multiple values to the 3 computed properties. ie fbound1, fbound2 and [displacement] as properties that take values from a function: "calculate" which returns 3 values.

Code for calculate function with 3 return values

public func calculateBoundary (inout f:[Float], s:[Float], n:NSInteger) -> (forceBound1:Float, forceBound2: Float, displacement:[Float])

For example, i could declare a computed property that will call 'calculate' function with its return value to be initialized to the property.

Declaring a computed property that will call calculate function with single return value

var springDisplacement : [Float] {return calculate(forceView2, stiffView2, springNumView2) }

public func calculate (f:[Float], s:[Float], n:NSInteger) -> [Float]

Answer 1

这个怎么样？

let (forceBound1, forceBound2, displacement) = calculateBoundary(...)