C#学习

Random r = new Random();
Console.WriteLine(r.Next() % 10);//产生0-9之间的随机数

int[] pins = new int[10]{1,2,3,4,5,6,7,8,9,0};//定义数组并初始化

foreach (int pin in pins)//使用foreach遍历数组中的元素
          {
              Console.WriteLine(pin);
          }

class Child
    {

        public string name;
        public int age;

        /// <summary>
        /// 重写构造方法
        /// </summary>
        /// <param name="name"></param>
        /// <param name="age"></param>
        public Child(string name,int age)//前面不写返回值类型，如果写了就会出错
        {
            this.name = name;
            this.age = age;
        }

    }