如何从Swift执行外部程序? [英] How to execute external program from Swift?

问题描述

我是Swift的新手，我没有发现任何有关使用Swing语言执行外部程序或访问外部进程的信息.

I am new in Swift and I did not found anything about executing external programs or access external processes using Swing language.

在语言开发的当前阶段是否有可能做，还是应该改用Objective-C?

Is it possible to do in the current stage of the language development or I should use Objective-C instead?

也许我的Swift程序中可以使用一些Objective-C库?

Maybe there are some Objective-C libraries that can be used inside my Swift program?

谢谢.

推荐答案

您可以使用NSTask运行外部程序.例如，来自圆形和方形:

You can run external programs using NSTask. For example, from Circle and Square:

import Foundation

func executeCommand(command: String, args: [String]) -> String {

    let task = NSTask()

    task.launchPath = command
    task.arguments = args

    let pipe = NSPipe()
    task.standardOutput = pipe
    task.launch()

    let data = pipe.fileHandleForReading.readDataToEndOfFile()
    let output: String = NSString(data: data, encoding: NSUTF8StringEncoding)

    return output        
}

let commandOutput = executeCommand("/bin/echo", ["Hello, I am here!"])
println("Command output: \(commandOutput)")

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