jq1.7==魂淡
//in this example, a click handler will be attached to every table row.
$("#dataTable tbody tr").on("click", function(event){
alert($(this).text());
});好吧，click() bind() live()不分了，event handle大统一了，甚至连best practice都广为流传了：
//in this example, the bound element is the tbody, not the tr's under the tbody.
//the second argument in the .on call is used, in this case, we pass the "tr" selector.
$("#dataTable tbody").on("click","tr", function(event){
alert($(this).text());
});魂淡，这你叫我肿么炫耀我知道live最效率啊！！！
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