연습문제: 엘리베이터 이벤트
당신은 건강 상태를 모니터링하는 시스템을 구현하는 일을 하고 있습니다. 그 일환으로 당신은 사용자의 건강 상태 통계를 추적해야합니다.
You'll start with a stubbed function in an impl
block as well as a User
struct definition. Your goal is to implement the stubbed out method on the User
struct
defined in the impl
block.
Copy the code below to https://play.rust-lang.org/ and fill in the missing method:
// TODO: 구현이 완료되면 이를 삭제합니다. #![allow(unused_variables, dead_code)] #![allow(dead_code)] pub struct User { name: String, age: u32, height: f32, visit_count: usize, last_blood_pressure: Option<(u32, u32)>, } pub struct Measurements { height: f32, blood_pressure: (u32, u32), } pub struct HealthReport<'a> { patient_name: &'a str, visit_count: u32, height_change: f32, blood_pressure_change: Option<(i32, i32)>, } impl User { pub fn new(name: String, age: u32, height: f32) -> Self { Self { name, age, height, visit_count: 0, last_blood_pressure: None } } pub fn visit_doctor(&mut self, measurements: Measurements) -> HealthReport { todo!("병원 방문에 따른 측정값을 기반으로 사용자 통계를 업데이트합니다.") } } fn main() { let bob = User::new(String::from("Bob"), 32, 155.2); println!("저는 {}이고, 나이는 {}세입니다.", bob.name, bob.age); } #[test] fn test_visit() { let mut bob = User::new(String::from("Bob"), 32, 155.2); assert_eq!(bob.visit_count, 0); let report = bob.visit_doctor(Measurements { height: 156.1, blood_pressure: (120, 80) }); assert_eq!(report.patient_name, "Bob"); assert_eq!(report.visit_count, 1); assert_eq!(report.blood_pressure_change, None); let report = bob.visit_doctor(Measurements { height: 156.1, blood_pressure: (115, 76) }); assert_eq!(report.visit_count, 2); assert_eq!(report.blood_pressure_change, Some((-5, -4))); }