ios8 swift开发：显示变量的类名称

var ivar = [:] ivar.className // __NSDictionaryI var i = 1 i.className // error: 'Int' does not have a member named 'className'

If you want to get the type of a primitive, you have to use bridgeToObjectiveC(). Example:

var i = 1 
i.bridgeToObjectiveC().className // __NSCFNumber
 
 
println("\(object_getClassName(now))");