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

namespace AkiragestuProject
{
    /// <summary>
    /// 基本计算类
    /// </summary>
    class akOperation
    {
        akMood akm = new akMood();
        /// <summary>
        /// 加法
        /// </summary>
        /// <param name="f1"></param>
        /// <param name="f2"></param>
        /// <returns></returns>
        public string Addition(string Addstr) 
        {
            string[] Arr = Addstr.Split('+');


            int cstr = 0;
            foreach(var a in Arr)
            {
                cstr+= Convert.ToInt32(a);
            }
            return cstr.ToString();
        }

        /// <summary>
        /// 减法
        /// </summary>
        /// <param name="f1"></param>
        /// <param name="f2"></param>
        /// <returns></returns>
        public string Subtraction(int f1, int f2)
        {

            int c = f1 - f2;

            var cstr = c.ToString();
            return cstr;
        }

        /// <summary>
        /// 乘法
        /// </summary>
        /// <param name="f1"></param>
        /// <param name="f2"></param>
        /// <returns></returns>
        public string Multiplication(int f1, int f2)
        {

            int c = f1 * f2;

            var cstr = c.ToString();
            return cstr;
        }

        /// <summary>
        /// Division
        /// </summary>
        /// <param name="f1"></param>
        /// <param name="f2"></param>
        /// <returns></returns>
        public string Division(int f1, int f2)
        {

            int c = f1 / f2;

            var cstr = c.ToString();
            return cstr;
        }
    }
}