diff --git a/Falcon.SugarApi.Test/ObjectExtendTest.cs b/Falcon.SugarApi.Test/ObjectExtendTest.cs
index 8194296..a170769 100644
--- a/Falcon.SugarApi.Test/ObjectExtendTest.cs
+++ b/Falcon.SugarApi.Test/ObjectExtendTest.cs
@@ -178,17 +178,12 @@ namespace Falcon.SugarApi.Test
         public string ItemA { get; set; } = "itema";
     }
 
-    public class ObjWithComparable
+    public class ObjWithComparable:IComparable<ObjWithComparable>
     {
         public int val { get; set; }
 
         public int CompareTo(ObjWithComparable? other) {
             return this.val - other.val;
         }
-
-        public override bool Equals(object? obj) {
-            var c = obj as ObjWithComparable;
-            return c == null ? false : c.val == this.val;
-        }
     }
 }
diff --git a/Falcon.SugarApi/ObjectExtend.cs b/Falcon.SugarApi/ObjectExtend.cs
index 59a35cd..1b1e087 100644
--- a/Falcon.SugarApi/ObjectExtend.cs
+++ b/Falcon.SugarApi/ObjectExtend.cs
@@ -221,6 +221,18 @@ namespace Falcon.SugarApi
                 return values.Any(a => a == null);
             }
             foreach(var i in values) {
+                if(i is IComparable<T> ict) {
+                    if(ict.CompareTo(obj) == 0) {
+                        return true;
+                    }
+                    continue;
+                }
+                if(i is IComparable ic) {
+                    if(ic.CompareTo(obj) == 0) {
+                        return true;
+                    }
+                    continue;
+                }
                 if(obj.Equals(i)) {
                     return true;
                 }
@@ -228,6 +240,14 @@ namespace Falcon.SugarApi
             return false;
         }
 
+        /// <summary>
+        /// 判断对象是否不在目标对象数组中。如果对象实现IComparable，则使用IComparable比较对象，否则使用Equals方法比较对象
+        /// </summary>
+        /// <typeparam name="T">对象类型</typeparam>
+        /// <param name="obj">当前对象</param>
+        /// <param name="values">目标对象数组</param>
+        /// <returns>不在数组中返回True，否则False</returns>
+        public static bool NotIn<T>(this T obj,params T[] values) => !obj.In(values);
     }
 
     /// <summary>
diff --git a/Falcon.SugarApi/StringExtend.cs b/Falcon.SugarApi/StringExtend.cs
index 995f741..0d611f9 100644
--- a/Falcon.SugarApi/StringExtend.cs
+++ b/Falcon.SugarApi/StringExtend.cs
@@ -199,5 +199,27 @@ namespace Falcon.SugarApi
             return str;
         }
 
+        /// <summary>
+        /// 判断字符串是否属于某个集合范围
+        /// </summary>
+        /// <param name="str">当前字符串</param>
+        /// <param name="strings">字符串范围</param>
+        /// <returns>属于True，否则False</returns>
+        public static bool In(this string str,params string[] strings) {
+            foreach(var s in strings) {
+                if(str == s) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        /// <summary>
+        /// 和In方法相反，判断字符串是否不属于某个集合范围
+        /// </summary>
+        /// <param name="str">当前字符串</param>
+        /// <param name="strings">字符串范围</param>
+        /// <returns>属于True，否则False</returns>
+        public static bool NotIn(this string str,params string[] strings) => !str.In(strings);
+
     }
 }
\ No newline at end of file