@IBAction func buttonSpeakClicked(sender:UIButton)
    {
        var mySpeechSynthesizer:AVSpeechSynthesizer = AVSpeechSynthesizer()
        var myString:String = "This is the phrase to say"
        var mySpeechUtterance:AVSpeechUtterance = AVSpeechUtterance(string:myString)

        println("\(mySpeechUtterance.speechString)")
        println("My string - \(myString)")

        mySpeechSynthesizer .speakUtterance(mySpeechUtterance)
    }@H_502_2@ 
 
第一次打印 – 没有
 
 
第二个println – 这就是要说的那句话
 
 
文档说init(字符串字符串：字符串！),但我无法弄清楚放在哪里