/// <summary>
/// https://www.cnblogs.com/songxingzhu/p/6737618.html
/// https://github.com/davideicardi/DynamicExpresso
/// 高性能版本，支持公式计算。wangyunpeng。2018-02-07
/// </summary>
/// <param name="statement">支持公式计算</param>
/// <returns></returns>
public static string Calc(string statement)
{
object @object = new DynamicExpresso.Interpreter().Eval(statement);
if (@object == null)
{
return(string.Empty);
}
else
{
return(@object.ToString());
}
}
