update

Author: TYRMars

Example/demo2.js

@@ -0,0 +1,34 @@
+var Fn = (function(){
+  var arrachFunctionList = {};
+  //事件通知
+  var notify = function (notifyName){
+    var args = Array.prototype.slice.call(arguments,1);
+    attachFunctionList[notifyName].fun.apply(attachFunctionList[notifyName].scope,args);
+    return this;
+  }
+  //事件监听
+  var attach = function(notifyName,callback){
+    if(typeof notifyName === "string" && typeof callback === "function"){
+      attachFunctionList[notifyName] = {
+        fun : callback
+      };
+    }
+    return{
+      attach:attach,
+      notify:notify
+    }
+  }
+}
+)();
+document.onkeydown = function(e){
+  var name = "张佳楠";
+  var number = window.event ? e.keyCode : e.which;
+  if(number === 9){
+    //Tab事件后通知该事件已经发生了，并把当前参数传递过去
+    fn.notify("keydown",name);
+  }
+}
+//监听到按钮被点击后进行其他操作
+Fn.attach("keydown",function(name){
+  alert("Tab切换成功！姓名是：" + name)
+})

README.md

@@ -29,8 +29,7 @@
 * [04-04](https://github.com/TYRMars/JSlearn#04-04) `DOM结构操作`
 * [04-05](https://github.com/TYRMars/JSlearn#04-05) `DOM知识总结`
 
-
-
+---
 
 ## JS小练习
 * JSDemo JS小程序