例如:
let str = "A String" println(" str value \(str) has address: ?")
现在这是标准库的一部分:unsafeAddressOf.
/// Return an UnsafePointer to the storage used for `object`. There's /// not much you can do with this other than use it to identify the /// object
斯威夫特3
对于Swift 3,使用withUnsafePointer:
var str = "A String" withUnsafePointer(to: &str) { print(" str value \(str) has address: \($0)") }