2013/08/29 C# WPF 学习笔记

自感 编程习惯(便于Debug调试的习惯)

List<int> testList = new List<int>();
            for (int i = 0; i < 10; i++)
            {
                testList.Add(new Random().Next(100));
                Thread.Sleep(100);
            }

            Console.WriteLine("偶数：");
            // testList.Count 不好的习惯
            //长度的不固定性 调错误的时候不易 一眼看出问题
            for (int i = 0; i < testList.Count; i++)
            {
                if (testList[i] % 2 == 0)
                {
                    Console.Write(testList[i].ToString() + ", ");
                }
            }
            Console.WriteLine();

            Console.WriteLine("奇数：");
            // 这种习惯较好
            int count = testList.Count;
            for (int i = 0; i < count; i++)
            {
                if (testList[i] % 2 != 0)
                {
                    Console.Write(testList[i].ToString() + ", ");
                }
            }
            Console.WriteLine();

            Console.Read();

class A
    {
        public string Name { get; set; }
        public string Sex { get; set; }
    }
    class Program
    {
        static void Main(string[] args)
        {
List<A> list = new List<A>();
            for (int i = 0; i < 10; i++)
            {
                //代码看起来简洁
                //如果是 {} 内部有 类型转换过程 不便做调试
                list.Add(new A() { Name = i + "_XX" , Sex = (i % 2 == 0 ? "女" : "男")  });
            }

            for (int i = 10; i < 20; i++)
            {
                A a = new A();
                //这种写法 对a中变量 通过类型中赋值时 便于调试
                a.Name = i + "_YY";
                a.Sex = i % 2 == 0 ? "女" : "男";
                list.Add(a);
            }

            foreach (A a in list)
            {
                Console.WriteLine(a.Name + "  " + a.Sex);
            }

            Console.Read();
}
}