Fixed：在没有绑定事件的情况下，直接调用off取消绑定时，JS报错

dist/css/mui.css

@@ -4341,8 +4341,8 @@ select:focus
     font-size: 14px;
 
     width: 270px;
-    margin: 5px auto 5px auto;
-    padding: 5px 5px 5px 5px;
+    margin: 5px auto;
+    padding: 5px;
 
     text-align: center;
 

dist/js/mui.js

@@ -928,7 +928,7 @@ Function.prototype.bind = Function.prototype.bind || function(to) {
 	};
 	var findDelegateFn = function(element, event) {
 		var delegateCallbacks = delegateFns[mid(element)];
-		var result = false;
+		var result = [];
 		if (delegateCallbacks) {
 			result = [];
 			if (event) {

examples/hello-mui/css/mui.css

@@ -4341,8 +4341,8 @@ select:focus
     font-size: 14px;
 
     width: 270px;
-    margin: 5px auto 5px auto;
-    padding: 5px 5px 5px 5px;
+    margin: 5px auto;
+    padding: 5px;
 
     text-align: center;
 

examples/hello-mui/js/mui.js

@@ -928,7 +928,7 @@ Function.prototype.bind = Function.prototype.bind || function(to) {
 	};
 	var findDelegateFn = function(element, event) {
 		var delegateCallbacks = delegateFns[mid(element)];
-		var result = false;
+		var result = [];
 		if (delegateCallbacks) {
 			result = [];
 			if (event) {

js/mui.event.js

@@ -101,7 +101,7 @@
 	};
 	var findDelegateFn = function(element, event) {
 		var delegateCallbacks = delegateFns[mid(element)];
-		var result = false;
+		var result = [];
 		if (delegateCallbacks) {
 			result = [];
 			if (event) {

sass/toast.scss

@@ -6,8 +6,8 @@
 }
 .#{$namespace}toast-message {
 	width: 270px;
-	margin: 5px auto 5px auto;
-	padding: 5px 5px 5px 5px;
+	margin: 5px auto;
+	padding: 5px;
 	background-color: #D8D8D8;
 	text-align: center;
 	color: #000;