How to import module like "UIKit" when using "swiftc" command to compile swift file?

I create a swift file (test.swift):

import UIKit

func test() {
    let view = UIView()
    print(view)
}

Then run the command swiftc test.swift in terminal. It outputs

error: no such module 'UIKit'

How to import the 'UIKit' module?

How do I compile swift in Xcode?

If you've installed the latest version of Xcode you should have a swift command available in your terminal, which launches a Swift REPL 1. You can run the Swift REPL from the command line and enter Swift code directly into it. Whenever you enter valid Swift code in the REPL, it will immediately compile and run it.

You need to link sdk and specify what target you building for:

swiftc input.swift 
    -o output.o 
    -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.0.sdk 
    -target arm64-apple-ios12.0