using System;
namespace Lessson11_exercise
{
    class program
    {
        static void Main(string[] args)
        {
            string customerName = "张三";
            Console.WriteLine("你好，{0}",customerName);
            Console.WriteLine();

            string customerName2 = "李四";
            int customerAge = 25;
            Console.WriteLine("{0}今年{1}岁了\n", customerName2,customerAge);

            string name = "小明";
            int age = 20;
            string email = "123@gmail.com";
            string address = "北京市朝阳区某街道某小区";
            string phone = "12345678901";
            Console.WriteLine("姓名：{0}\n年龄：{1}\n邮箱：{2}\n地址：{3}\n电话：{4}\n", name, age, email, address, phone);

            string username;
            int age1;
            string classes;
            Console.WriteLine("请输入你的用户名:");
            username = Console.ReadLine();
            Console.WriteLine("请输入你的年龄:");
            age1 = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("请输入你的班级:");
            classes = Console.ReadLine();
            Console.WriteLine("你是{0}\n你今年{1}岁了\n班级是{2}\n",username,age1,classes);
        }
    }
}