如何使用Swift 5查找其中一个结构数组项的最小或最大值项索引

struct Person {
    let name: String
    let age: Int
}

let people = [
    Person(name: "Alice", age: 25),
    Person(name: "Bob", age: 30),
    Person(name: "Charlie", age: 20)
]

if let minAgeIndex = people.indices.min(by: { people[$0].age < people[$1].age }) {
    print("最小年龄的人是：\(people[minAgeIndex].name)，年龄为：\(people[minAgeIndex].age)")
} else {
    print("数组为空")
}

if let maxAgeIndex = people.indices.max(by: { people[$0].age < people[$1].age }) {
    print("最大年龄的人是：\(people[maxAgeIndex].name)，年龄为：\(people[maxAgeIndex].age)")
} else {
    print("数组为空")
}