【问答】What does a module mean in swift?
# 提问 For example, I have two files called `file1.swift` and `file2.swift`. `file1.swift` ```swift import UIKit class A : B { } ``` `file2.swift` ```swift import UIKit class C : A {
# 提问 For example, I have two files called `file1.swift` and `file2.swift`. `file1.swift` ```swift import UIKit class A : B { } ``` `file2.swift` ```swift import UIKit class C : A {