C#类的基本用法

Preson类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ClassLibrary1
{
    class Person
    {
        public string _name;
        public int _age;
        public char _gender;

        public void XingWei()
        {
            Console.WriteLine("姓名：{0},年龄:{1},性别:{2}", this._name, this._age, this._gender);
        }

    }
}

class1 类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ClassLibrary1
{
    public class Class1
    {
        static void Main(string[] arr)
        {
            Person xinRen = new Person();
            xinRen._name = "张飞";
            xinRen._age = ;
            xinRen._gender = '男';
            xinRen.XingWei();
            Console.ReadKey();
        }

    }
}