扩展方法 .sort 支持多个对比器参数。

Apewer/CollectionUtility.cs

@@ -1,4 +1,5 @@
-using System;
+using Newtonsoft.Json.Linq;
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Collections.Specialized;
@@ -474,21 +475,71 @@ namespace Apewer
         #region 排序
 
         /// <summary>对列表中的元素排序。</summary>
-        public static List<T> Sort<T>(List<T> list, Func<T, T, int> comparison)
+        /// <returns>返回排序的数组，用于链式写法。</returns>
+        /// <exception cref="ArgumentNullException"></exception>
+        public static List<T> Sort<T>(this List<T> list, params Comparison<T>[] comparisons)
         {
-            if (list == null) return null;
-            if (comparison == null) return list;
-            list.Sort(new Comparison<T>(comparison));
+            if (list == null) throw new ArgumentNullException(nameof(list));
+            if (comparisons == null) throw new ArgumentNullException(nameof(comparisons));
+
+            var count = comparisons.Length;
+            if (count < 1) return list;
+            for (var i = 0; i < count; i++)
+            {
+                if (comparisons[i] == null) throw new ArgumentNullException(nameof(comparisons), $"Comparisons[{i}] is null.");
+            }
+
+            list.Sort((a, b) =>
+            {
+                for (var i = 0; i < count; i++)
+                {
+                    var compare = comparisons[i].Invoke(a, b);
+                    if (compare != 0) return compare;
+                }
+
+                return Comparer<T>.Default.Compare(a, b);
+            });
+
             return list;
         }
 
         /// <summary>对数组排序。</summary>
-        /// <exception cref="NullReferenceException"></exception>
-        public static T[] Sort<T>(T[] array, Func<T, T, int> comparison)
+        /// <returns>返回排序的数组，用于链式写法。</returns>
+        /// <exception cref="ArgumentNullException" />
+        /// <exception cref="InvalidOperationException" />
+        public static T[] Sort<T>(this T[] array)
         {
-            if (array == null) return array;
-            if (comparison == null) return array;
-            System.Array.Sort(array, new Comparison<T>(comparison));
+            System.Array.Sort(array);
+            return array;
+        }
+
+        /// <summary>对数组排序。</summary>
+        /// <returns>返回排序的数组，用于链式写法。</returns>
+        /// <exception cref="ArgumentNullException"></exception>
+        /// <exception cref="InvalidOperationException" />
+        public static T[] Sort<T>(this T[] array, params Comparison<T>[] comparisons)
+        {
+            if (array == null) throw new ArgumentNullException(nameof(array));
+            if (comparisons == null) throw new ArgumentNullException(nameof(comparisons));
+
+            var count = comparisons.Length;
+            if (count < 1) return array;
+            for (var i = 0; i < count; i++)
+            {
+                if (comparisons[i] == null) throw new ArgumentNullException(nameof(comparisons), $"Comparisons[{i}] is null.");
+            }
+
+            System.Array.Sort(array, (a, b) =>
+            {
+                for (var i = 0; i < count; i++)
+                {
+                    var compare = comparisons[i].Invoke(a, b);
+                    if (compare != 0) return compare;
+                }
+
+                return Comparer<T>.Default.Compare(a, b);
+            });
+
             return array;
         }
 

Apewer/_Extensions.cs

@@ -475,7 +475,7 @@ public static class Extensions
     public static T[] Array<T>(IEnumerable<T> @this, bool excludeNull = false) => CollectionUtility.Array<T>(@this, excludeNull);
 
     /// <summary>对列表中的元素排序。</summary>
-    public static List<T> Sort<T>(this List<T> @this, Func<T, T, int> comparison) => CollectionUtility.Sort(@this, comparison);
+    public static List<T> Sort<T>(this List<T> @this, Comparison<T> comparison) => CollectionUtility.Sort(@this, comparison);
 
     /// <summary>对字典中的键排序。</summary>
     public static Dictionary<TKey, TValue> SortKey<TKey, TValue>(this Dictionary<TKey, TValue> @this, Func<TKey, TKey, int> comparison) => CollectionUtility.SortKey(@this, comparison);