Swift native dictionary, which looks like an array, was initially confused by this question. After printing it, it was found that yes, in fact, it is also a dictionary, but it is different from OC.
Look at this chart:
It’s a dictionary, it’s a dictionary, it’s an array, it’s an array, it’s an array. Proof for a while before being told is Swift native structure, as you can see, [” pageSize: “four,” page_num “: 1] is a dictionary, but in the perspective of OC is an array, a word to use is right, make a big joke, write to you smile, take notice.