ios 讀書會分享 (20150418)
TRANSCRIPT
Copy or not copySmart Wang
Class• refence
copy reference
modify by obj2 obj1 be
modified too
Class• let
let
can modify content
let reference
struct / enum• copy
can modify
properties
struct / enum• let
p1 is struct
can not modify content
• parameter
function
default let can not be assign
var
can be assign