如何通过一个或多个类字段在 List<T> 中查找类对象？ [复制]

Question

我有这个代码：

class Garage
    {
        private List <Car> cars;

        public void AddCar (string carModel, string color, double speed, int yearOfIssue)
        {
            Car car = new Car (carModel, color, speed, yearOfIssue);
            cars.Add (car);
        }

        public void DeleteCar (string carModel, string color, double speed, int yearOfIssue)
        {
           
        }
    }

    class Car
    {
        public Car ()
        {
            
        }

        public Car (string carModel, string color, double speed, int yearOfIssue)
        {
            this.carModel = carModel;
            this.color = color;
            this.speed = speed;
            this.yearOfIssue = yearOfIssue;
        }

        private string carModel;
        private string color;
        private double speed;
        private int yearOfIssue;
    }

在 Garage 类中，我需要实现 DeleteCar 方法。那么当方法调用时，用户输入全部4个字段或其中的一部分，然后List中的对象就会被定位并删除，如何实现，有什么帮助呢？

Answer 1

对于删除可以使用 RemoveAll() 方法：

https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.list-1.removeall?view=netcore-3.1

public void DeleteCar (string carModel, string color, double speed, int yearOfIssue)
{
    cars.RemoveAll(c => 
        c.carModel == carModel && 
        c.color == color&& 
        c.speed == speed&& 
        c.yearOfIssue == yearOfIssue);
}

或

class Car
{
    public bool Equals(Car other)
    { 
        return other.carModel == carModel && 
             other.color == color&& 
             other.speed == speed&& 
             other.yearOfIssue == yearOfIssue;
    }
}

public void DeleteCar (string carModel, string color, double speed, int yearOfIssue)
{
    Car car = new Car (carModel, color, speed, yearOfIssue);
    cars.RemoveAll(c => c.Equals(car));
}