diff --git a/avalon.observe.js b/avalon.observe.js
index ea46ba84a..5bc211d88 100644
--- a/avalon.observe.js
+++ b/avalon.observe.js
@@ -1471,19 +1471,33 @@
                 .replace(rnumber, ",")
                 .replace(rcommaOfFirstOrLast, "")
                 .split(rcommaInMiddle)
-        return cacheVars(key, uinqSet(vars))
+        return cacheVars(key, uniqSet(vars))
     }
-    function uinqSet(arr) {
-        var set = new Set
-        arr.forEach(function(el) {
-            set.add(el)
-        })
-        var ret = []
-        set.forEach(function(el) {
-            ret.push(el)
-        })
+    
+    function uniqSet(array) {
+        var ret = [], unique = {}
+        for (var i = 0; i < array.length; i++) {
+            var el = array[i]
+            var id = el && typeof el.$id === "string" ? el.$id : el
+            if (!unique[id]) {
+                unique[id] = ret.push(el)
+            }
+        }
         return ret
     }
+    
+    void function() {
+        var test = [1, 2, 3, 1]
+        if (typeof Set == "function" && (new Set(test)).size == 3) {
+            var uniqSet = function(arr) {//重写uniqSet
+                var set = new Set(arr), ret = []
+                set.forEach(function(el) {
+                    ret.push(el)
+                })
+                return ret
+            }
+        }
+    }()
 
     function addDeps(scope, prop, data) {
         var obj = scope.$accessors
@@ -2491,7 +2505,7 @@
     } catch (e) {
         launch = avalon.tick
     }
-    
+
     duplexBinding.SELECT = function(element, evaluator, data) {
         var $elem = avalon(element)
         function updateVModel() {
diff --git a/iscroll.js b/iscroll.js
index 5f9fb7a4d..f8b62d9d7 100644
--- a/iscroll.js
+++ b/iscroll.js
@@ -1,7 +1,7 @@
 function IScroll (el, options) {
 	this.wrapper = typeof el == 'string' ? document.querySelector(el) : el;
 	this.scroller = this.wrapper.children[0];
-	this.scrollerStyle = this.scroller.style;		// cache style for better performance
+	this.scrollerStyle = this.scroller.style;		//保存滚动条元素的样式对象，以提高性能
 
 	this.options = {
 
@@ -76,16 +76,12 @@ IScroll.prototype = {
 	version: '/* VERSION */',
 
 	_init: function () {
-		this._initEvents();
-
-// INSERT POINT: _init
-
+		this._initEvents();//绑定事件
 	},
 
 	destroy: function () {
-		this._initEvents(true);
-
-		this._execEvent('destroy');
+		this._initEvents(true);//移除事件
+		this._execEvent('destroy');//执行用户回调
 	},
 
 	_transitionEnd: function (e) {
@@ -96,7 +92,7 @@ IScroll.prototype = {
 		this._transitionTime();
 		if ( !this.resetPosition(this.options.bounceTime) ) {
 			this.isInTransition = false;
-			this._execEvent('scrollEnd');
+			this._execEvent('scrollEnd');//执行用户回调
 		}
 	},
 
@@ -127,14 +123,14 @@ IScroll.prototype = {
 		this.directionY = 0;
 		this.directionLocked = 0;
 
-		this._transitionTime();
+		this._transitionTime();//设置CSS3 渐变时长 transition-duration
 
 		this.startTime = utils.getTime();
 
 		if ( this.options.useTransition && this.isInTransition ) {
 			this.isInTransition = false;
 			pos = this.getComputedPosition();
-			this._translate(Math.round(pos.x), Math.round(pos.y));
+			this._translate(Math.round(pos.x), Math.round(pos.y));//强制回到起始位置
 			this._execEvent('scrollEnd');
 		} else if ( !this.options.useTransition && this.isAnimating ) {
 			this.isAnimating = false;
@@ -234,7 +230,7 @@ IScroll.prototype = {
 
 		this.moved = true;
 
-		this._translate(newX, newY);
+		this._translate(newX, newY);//移动到新位置
 
 /* REPLACE START: _move */
 
diff --git a/test1.html b/test1.html
index 089f8400f..85f3649a2 100644
--- a/test1.html
+++ b/test1.html
@@ -23,42 +23,20 @@
             })
 
             window.onload = function() {
-                var elem = document.querySelector("#son")
-                var offset = function(el) {
-                    var left = -el.offsetLeft,
-                            top = -el.offsetTop;
-
-                    // jshint -W084
-                    while (el = el.offsetParent) {
-                        left -= el.offsetLeft;
-                        top -= el.offsetTop;
-                    }
-                    // jshint +W084
-
-                    return {
-                        left: left,
-                        top: top
-                    };
-                };
-
-                elem.addEventListener("DOMNodeRemovedFromDocument", function() {
-                    setTimeout(function() {
-                        console.log(document.documentElement.contains(elem))
-                        console.log("ddd")
-                    },4)
-
-                })
+           //     var elem = document.querySelector("#son")
+              
+         
                 setTimeout(function() {
                     //   elem.value = "dddddddddddddddd"
                 }, 3000)
                 setTimeout(function() {
-                    var el = document.querySelector("#parent")
-                    el.parentNode.removeChild(el)
+                //    var el = document.querySelector("#parent")
+                 //   el.parentNode.removeChild(el)
 
                 }, 3000)
 
             }
-
+          
 
         </script>
     </head>
@@ -84,8 +62,8 @@
             </div
 
 
-            <label for="female" ms-click="click">Female</label>
-            <input type="radio" name="sex" id="female" ms-click="click" />
+            <label for="female" ms-click="click" >Female</label>
+            <input  name="sex" id="female" ms-click="click" disabled/>
             <p type="button"  ms-click="click" ms-on-dblclick="dblclick">sss</p>
             <input disabled="disabled" ms-click="click" value="这是disabled元素">
         </div>