C＃Convert String plus to real plus

Question

我想知道是否有办法将字符串+转换为真正的加号。 实施例

string bla = "4+2";

我想联系到，4 + 2 = 6

谢谢！

Answer 1

试试这个

using System.Data; //refference for DataTable 

string bla = "4+2";
object value = new DataTable().Compute(bla , null);
string res=value.ToString();//res=6

Answer 2

您可以编译表达式并在运行时对其进行评估。看看这里：http://www.codeproject.com/Articles/3988/Evaluating-Mathematical-Expressions-by-Compiling-C

Answer 3

尝试以下代码

string bla = "4+2";
Expression exp = new Expression(bla);
Console.write(exp.Evaluate());

Answer 4

Int32 Number1; 
Int32 Number2;
String Result = Convert.ToString(Number1+Number2);