按名称调用scala函数中的参数

def greet(name: String, age: Int): Unit = {
  println(s"Hello $name! You are $age years old.")
}

// 使用命名参数调用函数
greet(name = "Alice", age = 25)

def greet(name: String, age: Int = 18, gender: String = "Unknown"): Unit = {
  println(s"Hello $name! You are $age years old. Your gender is $gender.")
}

// 使用命名参数调用函数，只指定非默认值的参数
greet(name = "Bob", gender = "Male")

def createPerson(firstName: String, lastName: String): Person = {
  // 创建Person对象的代码
}

// 使用命名参数调用函数
createPerson(lastName = "Doe", firstName = "John")