diff --git a/game.js b/game.js
index 4d428d6..8bb34ff 100644
--- a/game.js
+++ b/game.js
@@ -84,19 +84,19 @@ function Game(id,params){
     Item.prototype.bind = function(eventType,callback){
         if(!_events[eventType]){
             _events[eventType] = {};
-        }
-        $canvas.addEventListener(eventType,function(e){
-            var position = _.getPosition(e);
-            _stages[_index].items.forEach(function(item){
-                if(item.x<=position.x&&position.x<=item.x+item.width&&item.y<=position.y&&position.y<=item.y+item.height){
-                    var key = 's'+_index+'i'+item._id;
-                    if(_events[eventType][key]){
-                        _events[eventType][key](e);
+            $canvas.addEventListener(eventType,function(e){
+                var position = _.getPosition(e);
+                _stages[_index].items.forEach(function(item){
+                    if(item.x<=position.x&&position.x<=item.x+item.width&&item.y<=position.y&&position.y<=item.y+item.height){
+                        var key = 's'+_index+'i'+item._id;
+                        if(_events[eventType][key]){
+                            _events[eventType][key](e);
+                        }
                     }
-                }
+                });
+                e.preventDefault();
             });
-            e.preventDefault();
-        });
+        }
         _events[eventType]['s'+this._stage.index+'i'+this._id] = callback.bind(this);  //绑定作用域
     };
     //地图对象构造器
@@ -310,14 +310,14 @@ function Game(id,params){
     Stage.prototype.bind = function(eventType,callback){
         if(!_events[eventType]){
             _events[eventType] = {};
+            window.addEventListener(eventType,function(e){
+                var key = 's' + _index;
+                if(_events[eventType][key]){
+                    _events[eventType][key](e);
+                }
+                e.preventDefault();
+            });
         }
-        window.addEventListener(eventType,function(e){
-            var key = 's' + _index;
-            if(_events[eventType][key]){
-                _events[eventType][key](e);
-            }
-            e.preventDefault();
-        });
         _events[eventType]['s'+this.index] = callback.bind(this);	//绑定事件作用域
     };
     //动画开始
diff --git a/index.js b/index.js
index 6148ab0..bcdb2f6 100644
--- a/index.js
+++ b/index.js
@@ -688,7 +688,7 @@
 													context.moveTo(pos.x,pos.y);
 													context.lineTo(pos.x-_COS[index]*dist,pos.y-_SIN[index]*dist);
 													context.stroke();
-													context.closePath();							
+													context.closePath();
 												}
 											});
 									}
@@ -1054,4 +1054,4 @@
 		});
 	})();
 	game.init();
-})();
\ No newline at end of file
+})();