如何通过一个公共属性将两个自定义对象相互比较？

由黑暗的冰发布于 2020-05-24 10:32:02

我有一个具有以下属性的电影对象

public class Movie {
    private string title;
    ...other similar properties...
}

如何实现在二叉树中使用的CompareTo（）类？

我到目前为止所做的是

public int CompareTo(object obj)
{
    Movie m1 = (Movie)obj;

    return this.title.CompareTo(m1.title);
}

By trying to use the pre-existing CompareTo() function in string, but it won't work.

verror 2020-05-24 10:32:02

这就是实现CompareTo的方式

       static void Main(string[] args)
        {
            var m1 = new Movie() { title = "a1" };
            var m2 = new Movie() { title = "a0" };
            if (m1.CompareTo( m2) == 0)
            {
                Console.WriteLine("equal");
            }
            else
            {
                Console.WriteLine("not equal");
            }

        }        

       public class Movie: IComparable
        {
            public string title;

            public int CompareTo(object obj)
            {
                Movie m1 = (Movie)obj;
                return this.title.CompareTo(m1.title);
            }
        }

黑暗的冰

这家伙很懒，什么都没留下

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