Swift: print() vs println() vs NSLog()

What's the difference between print, NSLog and println and when should I use each? For example, in Python if I wanted to print a dictionary, I'd just print myDict, but now I have 2 other options. How and when should I use each?

[kawacho]

NSLog, print, os_log

[dorayakikun]

print()をつかったほうが良いのかな...

[raimon49]

NSLog()はマルチスレッドを意識して作られている。