如何定义
typealias AudioSample = UInt16
var maxAmplitudeFound = AudioSample.min //0
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Runnig...The future belongs to those who believe in the beauty of their dreams.
The future belongs to those who believe in the beauty of their dreams.
如何定义
typealias AudioSample = UInt16
var maxAmplitudeFound = AudioSample.min //0
let age = -3assert(age >=0, "A person's age cannot be less than zero")// this causes the assertion to trigger, because age is not >= 0…
声明let http404Error = (404, "Not Found")// http404Error is of type (Int, String),// and equals (404, "Not Found") 使用let (statusCode, statusMessage) = http404Errorprintln("The status code is \(statusCode)")// prints "The status code is 404"printl...…