C#方法定义和调用-2

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

namespace ConsoleApplication1
{
    class Qian
    {
        private decimal yuanlai;
        private string name;
        public Qian(string name)
        {
            this.yuanlai = ;
            this.name = name;
            Print("我的钱数", );
        }

        public bool Desposit(decimal jine)
        {
            if (jine <= )
                return false;
            yuanlai += jine;
            Print("借了别人",jine);
            return true;
        }

        public bool WithDraw(decimal jine)
        {
            if (jine > yuanlai || jine <= )
                return false;
            yuanlai -= jine;
            Print("借给别人", jine);
            return true;
        }

        private void Print(string operation, decimal jine)
        {
            Console.WriteLine("我的名字：{0}",name);
            Console.WriteLine("{0}:{1}",operation,jine);
            Console.WriteLine("现在的钱:{0}",yuanlai);
            Console.WriteLine("============================");
            Console.ReadKey();
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            Qian q = new Qian("我是LT");
            bool succed = q.Desposit();
            if (!succed)
                Console.WriteLine("他不借给我钱！");
            succed = q.WithDraw();
            if (!succed)
                Console.WriteLine("我不借给他钱！");
            Console.ReadKey();

        }
    }
}