예제 #1
0
        /// <summary>
        /// 一次性计算出结果 返回结果值并修改表达式
        /// </summary>
        /// <returns></returns>
        public string GetValueFinal()
        {
            CalData cd = UIController.SimpleCal(value);

            if (cd == null)
            {
                throw new AssignedError("AssignedError::Not defined " + express + "!Ex");
            }
            ExpData ed  = cd as ExpData;
            string  str = ed.GetValueEx();

//			string s =new UExpData ((cd as ExpData).GetExpress()).GetValueEx();
            if (str == null)
            {
                str = "0";
                throw new ExpError("ExpError::Something Wrong Happened!Final" + '\n');
            }
            value   = str;
            express = str;
            return(str);
        }
예제 #2
0
        //f(x,y)=x+y+t

        /// <summary>
        /// 替换已知变量,fstr是一个字符串表达式:x+y 不是f=x+y ,没有用了,底层已经能够替换掉它了
        /// 没有变量是会原串返回的
        /// 里面找未知数时会调用底层 CalString 的函数,里面已经自动排除sin,cos,avg等 函数名了
        /// </summary>
        /// <param name="fstr">含参表达式</param>
        /// <param name="ps">排除变量</param>
        /// <returns>返回FuncExpressTemp为替换后的string
        /// 或含有未知变量返回null</returns>
        public static string ReplaceParamers(string fstr, string[] ps = null)
        {
            string[]   strarr = null;
            FuncString fs     = new FuncString(fstr);

//			fs.SetFuncExpressTemp(fstr);
            fs.SetFuncExpress(fstr);            //为向下兼容不出错


            FuncCal fc = new FuncCal();

            if (ps == null)
            {
                strarr = fs.FindUnKnown();
            }
            else
            {
                strarr = fs.FindUnKnown(ps);
            }

            fs.SetParamers(strarr);            //为向下兼容不出错,不明觉厉
            if (strarr.Length != 0)
            {
                PushToShow("含有未知数 尝试替换已知变量");
            }

            string[] paramersdata = new string[strarr.Length];
            fc.SetFuncString(fs);
            for (int i = 0; i < strarr.Length; i++)
            {
                if (tdc.CheckName(strarr[i]))
                {
                    CalData datatemp = tdc.GetData(strarr[i]).GetCalData();

                    switch (datatemp.CalType)
                    {
                    case DataType.BLOCK:
                    {
                        PushToShow("Type not match!");
                    }
                    break;

                    case DataType.EXP:
                    {
                        ExpData ed = (ExpData)datatemp;
                        paramersdata[i] = ed.GetValueEx();
                        PushToShow("提取" + strarr[i] + "的值:" + paramersdata[i]);
                        break;
                    }

                    case DataType.MATRIX:
                    {
                        Matrix matrix = (Matrix)datatemp;
                        PushToShow(matrix.ToString());
                    }
                    break;
                    }

//					if (datatemp.CalType == DataType.EXP) {
//						ExpData ed = (ExpData)datatemp;
//						paramersdata[i] = ed.GetValueEx();
//						PushToShow("提取" + strarr[i] + "的值:" + paramersdata[i]);
//					}
//
//					else
//						PushToShow("Type not match!");
                    continue;
                }

                PushToShow("未发现变量" + strarr[i] + "还未定义其值\n退出");
                return(null);
            }
            if (paramersdata.Length != 0)
            {
                fc.DealFuncstring(paramersdata);
            }
            else
            {
                fs.SetFuncExpressTemp(fstr);
            }
            return(fc.GetFuncString().GetFuncExpressTemp());
        }