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                ### on綁定事件 ~~~ <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> div{ width:100px; height:100px; border:1px solid red; overflow: scroll; } </style> <script type="text/javascript" src="js/jquery-1.11.1.js"></script> <script> $(function() { //原生中有的事件都可以像下面這么用(去掉on) // $('#div1').click(function(){alert(123);}); //$('#div1').mouseover(function(){alert(123);}); //$('#div1').mousedown(function(){alert(123);}); $('#div1').scroll(function(){alert(123);}) //$('#div1').on('click', function(){alert(123);}) //這就相當于$('#div1').click(function(){alert(123);}) //$('#div1').on('click mouseover', function(){alert(123);}); //通過空格分隔多個事件名稱,可以同時綁定 }) </script> </head> <body style="height: 2000px;"> <div id="div1">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</div> </body> </html> ~~~ *** ### off取消事件 ~~~ <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <script type="text/javascript" src="js/jquery-1.11.1.js"></script> <script> $(function() { //無論是用on()還是用click()形式綁定的事件,都是用off()取消的 /* $('#div1').on('click mouseover', function(){ alert(123); $(this).off(); //刪除所有的事件操作 }) */ $('#div1').on('click mouseover', function(){ alert(123); $(this).off('mouseover'); //取消指定的事件 }) }) </script> </head> <body style="height: 2000px;"> <div id="div1">aaaaaa</div> </body> </html> ~~~
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