自定义公式((H+S)*C/W*12/100)计算代码,CSharp代码库,德仔网

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【CSharp】自定义公式((H+S)*C/W*12/100)计算

作者:一叶扁轴 / 发布于2014/10/8/ 689

适用与C#的ASP.NET WinForm,控制台程序


	//控制台调用
	 static void Main(string[] args)
	 {
	 double txtH = 30000;
	 double txtS = 100.96;
	 double txtC = 3232;
	 double txtW = 129;
	 double txtX = 1;
	 double txtF = 6;
	 double txtB = 7;
	 string txtGS = "(H+S)*C/W*12/100";
	 string str= AutomaticCalculation.GetData(txtH, txtS, txtC, txtW, txtX, txtF, txtB, txtGS);
	
	 }
	
	
	
	//方法AutomaticCalculation类库
	public static string GetData(double txtH, double txtS, double txtC, double txtW, double txtX, double txtF, double txtB, string txtGS)
	 {
	 string no = "";
	 try
	 {
	 CSharpCodeProvider provider = new CSharpCodeProvider(); //新建编译器访问实例
	 CompilerParameters parameter = new CompilerParameters(); //编译器传参
	 parameter.ReferencedAssemblies.Add("System.dll");
	 parameter.GenerateExecutable = false;
	 parameter.GenerateInMemory = true;
	 string gs = txtGS.ToString(); //获取输入文本的公式类型
	 string new1 = gs.Replace("H", "{0:###.##}");
	 string new2 = new1.Replace("S", "{1:###.##}");
	 string new3 = new2.Replace("C", "{2:###.##}");
	 string new4 = new3.Replace("W", "{3:###.##}");
	 string new5 = new4.Replace("X", "{4:###.##}");
	 string new6 = new5.Replace("F", "{5:###.##}");
	 string new7 = new6.Replace("B", "{6:###.##}");
	 String formula = string.Format(new7.ToString(), txtH, txtS, txtC, txtW, txtX, txtF, txtB);
	 CompilerResults result = provider.CompileAssemblyFromSource(parameter, CreateCode(formula));//将你转换好的公式放在这里
	 if (result.Errors.Count > 0) //进行格式验证
	 {
	 no = "编译器不能编译非数字格式进行计算";
	 }
	 else
	 {
	 Assembly assembly = result.CompiledAssembly; //调用一个程序集
	 Type AType = assembly.GetType("ANameSpace.AClass"); //打开一个类型接口
	 MethodInfo method = AType.GetMethod("AFunc"); //
	 object a = method.Invoke(null, null);
	 no = Convert.ToDouble(a).ToString("f2");
	 }
	 }
	 catch (Exception ex)
	 {
	 Console.WriteLine(ex.Message);
	 }
	 return no;
	 }
	
	 static string CreateCode(string para)
	 {
	 return "using System; namespace ANameSpace{static class AClass{public static object AFunc(){return " + para + ";}}}";
	 }

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