fix

Author: linzhijun

csharp/ToolGood.Algorithm/Internals/Functions/Csharp/Function_LOOKFLOOR.cs

@@ -26,7 +26,7 @@ public override Operand Evaluate(AlgorithmEngine engine, Func<AlgorithmEngine, s
 			List<decimal> list = new List<decimal>();
 			FunctionUtil.F_base_GetList(args2, list);
 			if(list.Count == 0) { return ParameterError(2); }
-			list = list.OrderBy(n => n).ToList();
+			list.Sort();
 			var value = args1.NumberValue;
 			var result = list[0];
 			if(result == value) { return args1; }

csharp/ToolGood.Algorithm/Internals/Functions/MathSum/Function_MEDIAN.cs

@@ -23,7 +23,7 @@ public override Operand Evaluate(AlgorithmEngine engine, Func<AlgorithmEngine, s
             if (o == false) { return FunctionError(); }
             if (list.Count == 0) { return FunctionError(); }
 
-            list = list.OrderBy(q => q).ToList();
+            list.Sort();
             return Operand.Create(list[list.Count / 2]);
         }
 

csharp/ToolGood.Algorithm/Internals/Functions/MathSum/Function_SMALL.cs

@@ -28,7 +28,7 @@ public override Operand Evaluate(AlgorithmEngine engine, Func<AlgorithmEngine, s
 			var list = new List<decimal>();
 			var o = FunctionUtil.F_base_GetList(args1, list);
 			if(o == false) { return ParameterError(1); }
-			list = list.OrderBy(q => q).ToList();
+			list.Sort();
 			int k = args2.IntValue;
 			if(k < 1 - engine.ExcelIndex || k > list.Count - engine.ExcelIndex) {
 				return ParameterError(2);