/// <summary>
/// 给定函数FuncString类型 求值
/// </summary>
/// <param name="fs">必须得有参数 名字 表达式</param>
/// <param name="nums">替换的参数</param>
/// <returns>返回计算结果</returns>
public double GetFuncResult(FuncString fs, params string[] nums)
{ //这里的fs应该时是完整的?
double result = 0;
if (fs != null)
{ //改一下
FuncCal fc = new FuncCal();
// FuncString funs=tdc.GetData(fs).ConvertTOFunString();
fc.SetFuncString(fs);
fc.DealFuncstring(nums);
result = fc.GetResult();
if (fc.IsWrong())
{
PushToShow(fc.ErrorMessage(), "error");
}
}
return(result);
}
public double FuncResult(string fs, TempDataCollection tdcl, params string[] nums)
{
double result = 0;
if (fs != null)
{
PushToShow("有括号求值");
FuncCal fc = new FuncCal();
FuncString funs = tdcl.GetData(fs).ConvertTOFunString();
fc.SetFuncString(funs);
fc.DealFuncstring(nums);
result = fc.GetResult();
PushToShow("结果：" + fc.GetResult());
if (fc.IsWrong())
{
PushToShow("出错了！" + fc.ErrorMessage());
}
}
return(result);
}
public double FuncResult(string fs, TempDataCollection tdcl, params string[] nums)
{
double result = 0;
if (fs != null)
{
PushToShow("有括号求值");
FuncCal fc = new FuncCal();
FuncData fd = (FuncData)tdc.GetData(fs).GetCalData();
FuncString funs = new FuncString(fs, fd.GetExpValue(), fd.GetParamers());
fc.SetFuncString(funs);
fc.DealFuncstring(nums);
result = fc.GetResult();
PushToShow("结果：" + fc.GetResult());
if (fc.IsWrong())
{
PushToShow("出错了！" + fc.ErrorMessage());
}
}
return(result);
}
//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());
}