using System;
using IwbZero.Expr;
using IwbZero.ToolCommon.StringModel;

namespace IwbZero.ExprFunctions.Functions
{
    /// <summary>
    /// 获取日期(年)
    /// </summary>
    public class FunGetYear:IIwbFunction
    {
        public string Invoke(ExprObject exprObj)
        {
            var year = DateTime.Now.Year;
            if (exprObj.ChildCount > 0)
            {
                year = exprObj.GetChild(0).Expr.StrToDt().Year;
            }
            return year.ToString();
        }
    }
}