Update EditorTools.cs

Assets/YooAsset/Editor/EditorTools.cs

@@ -559,6 +559,21 @@ namespace YooAsset.Editor
         {
             return path.Replace('\\', '/').Replace("\\", "/"); //替换为Linux路径格式
         }
+    
+        /// <summary>
+        /// 移除路径里的后缀名
+        /// </summary>
+        public static string RemoveExtension(string str)
+        {
+            if (string.IsNullOrEmpty(str))
+                return str;
+
+            int index = str.LastIndexOf('.');
+            if (index == -1)
+                return str;
+            else
+                return str.Remove(index); //"assets/config/test.unity3d" --> "assets/config/test"
+        }
 
         /// <summary>
         /// 获取项目工程路径