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請問老師swift3種函數(shù)調(diào)用的時候,默認(rèn)值參數(shù)交換位置調(diào)用的功能是否已經(jīng)取消,現(xiàn)在編譯是錯誤的
2016-10-09
源自:玩兒轉(zhuǎn)Swift 2.0(第二季) 4-4
正在回答
func sayHello(to name:String = "Playground", withGreetingWord greadting:String = "Hello", punctuation:String = "!") -> String {
? ? return "\(greadting),\(name)\(punctuation)"
}
sayHello()
sayHello(to: "OC", withGreetingWord: "Bye", punctuation: "!!!")
XCODE8 剛才手動試了下, 是不可以交換位置了
舉報
基于Swift2.1的swift語言教程第二季,深入地了解swift語法
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2016-10-13
func sayHello(to name:String = "Playground", withGreetingWord greadting:String = "Hello", punctuation:String = "!") -> String {
? ? return "\(greadting),\(name)\(punctuation)"
}
sayHello()
sayHello(to: "OC", withGreetingWord: "Bye", punctuation: "!!!")
XCODE8 剛才手動試了下, 是不可以交換位置了