fix

Author: linzhijun

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

@@ -28,17 +28,17 @@ 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.OrderByDescending(n => n).ToList();
+			list.Sort();
 			var value = args1.NumberValue;
-			var result = list[0];
+			var result = list[list.Count - 1];
 			if(result == value) { return args1; }
-			for(int i = 1; i < list.Count; i++) {
+			for(int i = list.Count - 2; i >= 0; i--) {
 				var val = list[i];
 				if(val > value) {
 					result = val;
 				} else if(val == value) {
 					return args1;
-				} else /*if(val < value)*/ {
+				} else {
 					break;
 				}
 			}

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

@@ -29,12 +29,12 @@ public override Operand Evaluate(AlgorithmEngine engine, Func<AlgorithmEngine, s
 			var o = FunctionUtil.F_base_GetList(args1, list);
 			if(o == false) { return ParameterError(1); }
 
-			list = list.OrderByDescending(q => q).ToList();
+			list.Sort();
 			int k = args2.IntValue;
 			if(k < 1 - engine.ExcelIndex || k > list.Count - engine.ExcelIndex) {
 				return ParameterError(2);
 			}
-			return Operand.Create(list[k - engine.ExcelIndex]);
+			return Operand.Create(list[list.Count - k + engine.ExcelIndex - 1]);
 		}
 
 	}