计算字符串中的表达式

void Main()
{
    string exp="1+2*3+(2+4)*3-23+23-4/2";
    new DataTable().Compute(exp,null).Dump();

    Microsoft.JScript.Vsa.VsaEngine ve =     Microsoft.JScript.Vsa.VsaEngine.CreateEngine();
    (Microsoft.JScript.Eval.JScriptEvaluate(exp, ve)).Dump();

    //IronPython 

}