diff --git a/Megumin.Explosion/Megumin/Class/Multiple.cs b/Megumin.Explosion/Megumin/Class/Multiple.cs
index e7f0c76..968051b 100644
--- a/Megumin.Explosion/Megumin/Class/Multiple.cs
+++ b/Megumin.Explosion/Megumin/Class/Multiple.cs
@@ -11,7 +11,10 @@ namespace Megumin
     /// <typeparam name="V"></typeparam>
     public abstract partial class Multiple<K, V> : EqualComparer<V>, IMultiple<K, V>
     {
-        protected readonly Dictionary<K, V> ElementDic = new Dictionary<K, V>();
+        /// <summary>
+        /// 所有构成项的字典，如果没有特殊需求不要再外部更改，使用方法。
+        /// </summary>
+        public readonly Dictionary<K, V> ElementDic = new();
         public event OnChanged<V> ValueChanged;
         public event OnChanged<(K Key, V Value)> ValueChangedKV;
         public event OnChanged<(K Key, V Value)> KeyOrValueChanged;
@@ -160,6 +163,14 @@ public virtual V RemoveAll(int raiseEvent = 0)
             return Current;
         }
 
+        public V RemoveAll(Func<KeyValuePair<K, V>, bool> predicate, int raiseEvent = 0)
+        {
+            ElementDic.RemoveAll(predicate);
+            ElementDic[DefaultKey] = DefaultValue;
+            ApplyValue(raiseEvent);
+            return Current;
+        }
+
         /// <summary>
         /// 返回当前值
         /// </summary>
diff --git a/Megumin.Explosion/Megumin/Interface/IMultiple.cs b/Megumin.Explosion/Megumin/Interface/IMultiple.cs
index 9ae6d3e..8de6415 100644
--- a/Megumin.Explosion/Megumin/Interface/IMultiple.cs
+++ b/Megumin.Explosion/Megumin/Interface/IMultiple.cs
@@ -56,6 +56,14 @@ public interface IMultiple<K, V>
         /// <returns></returns>
         V RemoveAll(int raiseEvent = 0);
 
+        /// <summary>
+        /// 取消除默认值以外的所有符合条件的构成项
+        /// </summary>
+        /// <param name="predicate"></param>
+        /// <param name="raiseEvent">Ignore = -1,Force:101, <seealso cref="RaiseEvent"/></param>
+        /// <returns></returns>
+        V RemoveAll(Func<KeyValuePair<K, V>, bool> predicate, int raiseEvent = 0);
+
         /// <summary>
         /// 在控制项没有变动的情况下，触发ApplyValue，尝试触发事件。
         /// </summary>