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!!!