xcode 从 Swift 3 命令行工具获取用户输入
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Get user input from Swift 3 command line tool
提问by Jason M.
When building a command line tool in Swift 3, I need to prompt the user for keyboard input. How would I go about asking a user for their input (e.g the users name)?
在 Swift 3 中构建命令行工具时，我需要提示用户进行键盘输入。我将如何询问用户的输入（例如用户名）？
回答by Code Different
readline()is available since at least Swift 2 and is still available in Swift 3 (Xcode 8 Beta 1):
readline()至少从 Swift 2 开始可用，并且在 Swift 3 (Xcode 8 Beta 1) 中仍然可用：
print("Please enter your name: ", terminator: "")
let name = readLine()!
回答by Jason M.
This is subject to change as Swift 3 is a moving target, but here is a basic example to prompt a user for their input.
由于 Swift 3 是一个移动目标，这可能会发生变化，但这里是一个提示用户输入的基本示例。
import Foundation
func input() -> String {
let keyboard = FileHandle.standardInput()
let inputData = keyboard.availableData
return NSString(data: inputData, encoding: String.Encoding.utf8.rawValue) as! String
}
print("Please enter your name:")
var name = input()
print("\(name)")
