如何在swift中每1小时生成一个randomString？

import Foundation

func generateRandomString() -> String {
    let hour = Calendar.current.component(.hour, from: Date())
    let randomString = "\(hour)\(UUID().uuidString)"
    return randomString
}

// 每小时生成一个随机字符串
func generateRandomStringEveryHour() {
    let timer = Timer.scheduledTimer(withTimeInterval: 3600, repeats: true) { _ in
        let randomString = generateRandomString()
        print(randomString)
    }
    timer.fire()
}

generateRandomStringEveryHour()