bootstrap如何设置鼠标悬停提示

1、 　　　　

<button type="button" rel="drevil" data-content="报名截止时间：'+time+'" data-container="body" data-toggle="popover"  data-placement="bottom"></button>

2、

$(function () { $("[data-toggle='popover']").popover(); });　　　　 　　  $("[rel=drevil]").popover({                       trigger:'manual',                       //placement : 'bottom', //placement of the popover. also can use top, bottom,                        left or right                       //天title : '<div style="text-align:center; color:red; text-decoration:underline;                        font-size:14px;"> Muah ha ha</div>', //this is the top title bar of the popover.                        add some basic css                       html: 'true', //needed to show html of course                       //content : '<div id="popOverBox"><img src="http://www.hd-report.com/wp-content                       /uploads/2008/08/mr-evil.jpg" width="251" height="201" /></div>', //this is the                        content of the html box. add the image here or anything you want really.                       animation: false                   }).on("mouseenter", function () {                       var _this = this;                       $(this).popover("show");                       $(this).siblings(".popover").on("mouseleave", function () {                           $(_this).popover('hide');                       });                   }).on("mouseleave", function () {                       var _this = this;                       setTimeout(function () {                           if (!$(".popover:hover").length) {                               $(_this).popover("hide")                           }                       }, 300);                   });

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