这次分享的代码是jQuery插件，HovertreeImg是一个图片轮播jquery插件，使用方便，可以设置大小，圆点位置等，代码简洁

#img img{width:100%;height:100%;}

#img #imgcontent{display:none}a{color:blue}

$("#img").hovertreeimg({

"h_circlePosition": "",//left,right,center

"h_width": 768,

"h_height": 66,

"h_borderColor":"silver",

"h_circleWidth": 14

});

jquery.img.js

/*!

* HovertreeImg(jQuery Plugin)

* version: 1.0.0

* Copyright (c) 2016 HoverTree

*/

(function ($) {

$.fn.hovertreeimg = function (options) {

var settings = $.extend({

h_time:"3000",//切换时间

h_borderColor: "transparent",//边框颜色

h_width: "500",//宽度

h_height: "200",//高度

h_circleWidth: "18",//方框边长

h_circleColor:"silver",//圆点颜色

h_currentCircleColor: "red",//当前圆点颜色

h_circlePosition:"right"//圆点位置

}, options);

var h_hovertreeimg = $(this);

if (h_hovertreeimg.length < 1)

return;

h_hovertreeimg.css({

"position": "relative", "border":"solid 1px "+ settings.h_borderColor

, "width": settings.h_width, "height": settings.h_height

, "overflow": "hidden"

})

var h_hovertreeimgcontent = h_hovertreeimg.find(">div#hovertreeimgcontent");

h_hovertreeimgcontent.hide();

var h_hovertreeimgcurrent = h_hovertreeimg.find(">a");

h_hovertreeimgcurrent.wrap("

h_replaceFrame = h_hovertreeimg.find("#replaceframe").css({ "width": "100%", "height": "100%" });

//构造圆点框

$('

var h_hovertreeimgpoint = h_hovertreeimg.find(".hovertreeimgpoint");

h_hovertreeimgcontent.prepend(h_hovertreeimgcurrent.clone(true));//复制到总a集合

var h_hovertreeimgitems = h_hovertreeimgcontent.children();//所有a标签集合

var h_hovertreeimglength = h_hovertreeimgitems.length;//所有轮播项数量

var h_isswitch = true;//是否轮播

var h_circleWidth = parseInt(settings.h_circleWidth);

//加边框与间隔

var h_circleFrameWidth = (h_circleWidth + 4) * h_hovertreeimglength+2;

h_hovertreeimgpoint.css({

"height": (h_circleWidth + 4), "position": "absolute", "bottom": "0px",

"display": "inline-block"

})

//设置圆点位置

switch (settings.h_circlePosition) {

case 'right':

h_hovertreeimgpoint.css({

"right": "0px"

})

break;

case 'left':

h_hovertreeimgpoint.css({

"left": "0px"

})

break;

default:

h_hovertreeimgpoint.css({

"left": "0px",

"right": "0px",

"width": h_circleFrameWidth + "px",

"margin": "0px auto"

})

break;

}

//切换索引

var h_hovertreeimgindex = 1;

if (h_hovertreeimglength < 2)

h_hovertreeimgindex = 0;

//构造圆点

for (var h_i = 0; h_i < h_hovertreeimglength; h_i++) {

h_hovertreeimgpoint.append("

}

h_pointset = h_hovertreeimgpoint.find("div");//圆点集合

h_pointset.css({

"background-color": settings.h_circleColor, "width": settings.h_circleWidth

, "height": settings.h_circleWidth

, "border": "1px solid white"

, "margin-left": "2px",

"display": "inline-block",

"border-radius": "50%"

})

h_pointset.eq(0).css({ "background-color": settings.h_currentCircleColor });

//设置当前图片

function imgswitch(imgindex) {

h_replaceFrame.html(h_hovertreeimgitems.eq(imgindex));

h_pointset.css({ "background-color": settings.h_circleColor });

h_pointset.eq(imgindex).css({ "background-color": settings.h_currentCircleColor });

}

h_replaceFrame.find("img").css({

"width": settings.h_width

, "height": settings.h_height

})

//圆点操作

h_pointset.hover(function () {

h_isswitch = false;//光标悬停到圆点停止切换

imgswitch($(this).attr('hovertreeimgdata'));

}

, function () {

h_isswitch = true;

}

)

//切换

setInterval(function () {

if (!h_isswitch)

return;

imgswitch(h_hovertreeimgindex);

h_hovertreeimgindex = (h_hovertreeimgindex + 1) % h_hovertreeimglength;

}, settings.h_time)

//光标悬停到图片停止切换

h_replaceFrame.hover(function () { h_isswitch = false; }, function () { h_isswitch = true; })

}

}(jQuery));