The Swift function specifies parameter defaults

Half of the parameters in SWIFT are defined as follows:

Func funcName (parameter) -> returnType {Statement1 Statement2...... Statement Nreturn parameters
}
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example

func runoob(site: String) -> String {
    return (site)
}
print(runoob(site: "WWW. Baidu. Com"))
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With a default value

Func addName(name1:String,name2 :String, P :String ="stop") {print("\(name1) and \(name2) are \(P)")}Copy the code

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