每天一个JS 小demo之韩雪冬轮播图。主要知识点:html,css布局,对于数组和对象的理解和运用

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 1 @charset "utf-8";
 2 /* CSS Document */
 3 
 4 * { padding: 0; margin: 0; }
 5 li { list-style: none; }
 6 img { border: none; }
 7 body { background: #ececec; padding-top: 50px; }
 8 
 9 #automatic { width: 970px; height: 344px; position: relative; margin: 0 auto; overflow: hidden; }
10 
11 .prev_div { width: 130px; height: 72px; position: absolute; top: 128px; left: 92px; z-index: 5; background: red; filter: alpha(opacity=0); opacity: 0; cursor: pointer; }
12 .next_div { width: 130px; height: 72px; position: absolute; top: 128px; right: 92px; z-index: 5; background: red; filter: alpha(opacity=0); opacity: 0; cursor: pointer; }
13 
14 #automatic .prev { width: 120px; height: 72px; position: absolute; top: 108px; left: 72px; z-index: 4; }
15 #automatic .prev .ico { width: 76px; height: 112px; position: absolute; top: 0; left: 0; background: url(images/prev.png); }
16 #automatic .prev .ico1 { width: 76px; height: 112px; position: absolute; top: 0; left: 0; background: url(images/prev_1.png); z-index: 2; filter: alpha(opacity=0); opacity: 0; }
17 #automatic .prev .txt { width: 106px; height: 112px; position: absolute; top: 0; left: 65px; background: url(images/prev_txt.png) no-repeat; filter: alpha(opacity=0); opacity: 0; }
18 
19 #automatic .next { width: 120px; height: 72px; position: absolute; top: 108px; right: 72px; z-index: 4; }
20 #automatic .next .ico { width: 76px; height: 112px; position: absolute; top: 0; right: 0; background: url(images/next.png) no-repeat; }
21 #automatic .next .ico1 { width: 76px; height: 112px; position: absolute; top: 0; right: 0px; background: url(images/next_1.png) no-repeat; z-index: 2; filter: alpha(opacity=0); opacity: 0; }
22 #automatic .next .txt { width: 106px; height: 112px; position: absolute; top: 0; right: 65px; background: url(images/next_txt.png) no-repeat; filter: alpha(opacity=0); opacity: 0; }
23 
24 #automatic ul { width: 970px; height: 344px; position: absolute; top: 0; left: 0; z-index: 1; }
25 #automatic li { position: absolute; }
26 
27 #automatic .line { border: 4px solid #fff; width: 672px; height: 336px; position: absolute; top: 0; left: 50%; margin-left: -340px; z-index: 3; }
28 
29 #automatic .pos_0 { top: -104px; left: 0; z-index: 1; filter: alpha(opacity=0); opacity: 0; }
30 #automatic .pos_1 { top: 104px; left: 0; z-index: 2; filter: alpha(opacity=60); opacity: 0.6; }
31 #automatic .pos_2 { top: 43px; left: 50px; z-index: 3; filter: alpha(opacity=80); opacity: 0.8; }
32 #automatic .pos_3 { top: 0; left: 145px; z-index: 4; }
33 #automatic .pos_4 { top: 43px; right: 50px; z-index: 3; filter: alpha(opacity=80); opacity: 0.8; }
34 #automatic .pos_5 { top: 104px; right: 0; z-index: 2; filter: alpha(opacity=60); opacity: 0.6; }
35 #automatic .pos_6 { top: -104px; right: 0; z-index: 1; filter: alpha(opacity=0); opacity: 0; }
36 
37 #footer { width: 970px; height: 30px; text-align: center; padding-top: 50px; margin: 0 auto; }
38 #footer a { color: #930; font-family: arial; font-size: 15px; text-decoration: none; border-bottom: 1px dotted #930; }
39 #footer a:hover { border-bottom: 1px solid #930; }
  1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  2 <html xmlns="http://www.w3.org/1999/xhtml">
  3 <head>
  4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  5 <title>韩雪冬网站效果 - 妙味课堂 - www.miaov.com</title>
  6 <!--[if lte IE 6]>
  7 <script src="js/DD_belatedPNG_0.0.8a.js" type="text/javascript"></script>
  8     <script type="text/javascript">
  9         DD_belatedPNG.fix(‘span‘);
 10     </script>
 11 <![endif]-->
 12 <link href="style.css" rel="stylesheet" type="text/css" />
 13 </head>
 14 
 15 <body>
 16 
 17 <div id="automatic">
 18 
 19     <div class="prev_div"></div>
 20     <a class="prev" href="###">
 21         <span class="ico1"></span>
 22         <span class="ico"></span>
 23         <span class="txt"></span>
 24     </a>
 25     
 26     <div class="next_div"></div>
 27     <a class="next" href="###">
 28         <span class="ico1"></span>
 29         <span class="ico"></span>
 30         <span class="txt"></span>
 31     </a>
 32 
 33     <div class="line"></div>
 34 
 35     <ul class="picList">
 36         <li class="pos_0"><a href="http://www.miaov.com"><img src="images/8.jpg" width="100" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
 37         <li class="pos_1"><a href="http://www.miaov.com"><img src="images/1.jpg" width="270" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
 38         <li class="pos_2"><a href="http://www.miaov.com"><img src="images/2.jpg" width="510" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
 39         <li class="pos_3"><a href="http://www.miaov.com"><img src="images/3.jpg" width="680" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
 40         <li class="pos_4"><a href="http://www.miaov.com"><img src="images/4.jpg" width="510" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
 41         <li class="pos_5"><a href="http://www.miaov.com"><img src="images/5.jpg" width="270" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
 42         <li class="pos_6"><a href="http://www.miaov.com"><img src="images/6.jpg" width="270" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
 43         <li class="pos_6"><a href="http://www.miaov.com"><img src="images/7.jpg" width="270" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
 44     </ul>
 45 </div>
 46 <p id="footer"><a href="http://www.miaov.com">妙味课堂 - www.miaov.com</a></p>
 47 </body>
 48 </html>
 49 <script type="text/javascript" src="../../startmove.js"></script>
 50 <script type="text/javascript">
 51 /*初始宽度*/
 52 // 使用函数自执行写法,防止全局污染
 53 (function(){
 54      var picList = document.querySelectorAll(‘.picList>li‘);
 55     for(var i = 0; i <picList.length;i++){
 56         // 为什么要加个[0]?
 57         var img = picList[i].getElementsByTagName("img")[0];
 58         css(picList[i],"width",img.width);
 59         img.style.width = "100%";
 60     }
 61 })();
 62 /* 左侧按钮的鼠标移入移出动画 */
 63 (function(){
 64     // 由于prev内部的元素层级都比它自身高,盖在它上面,所以如果在prev上加onmouseover或者onmouseout,实际上鼠标根本移动不到prev上,所以添加一个层级较高的prevBtn来防止干扰,nextBtn同理
 65     var prevBtn = document.querySelector(‘.prev_div‘);
 66     var prev = document.querySelector(‘.prev‘);
 67     var prevSpan = prev.querySelectorAll(‘span‘);
 68     prevBtn.onmouseover = function(){
 69          startMove({
 70             el: prevSpan[1],
 71             target: {
 72                 left: 12
 73             },
 74             time: 300,
 75             type: "easeBoth"
 76         });
 77         startMove({
 78             el: prevSpan[0],
 79             target: {
 80                 opacity:1,
 81                 left: 12
 82             },
 83             time: 300,
 84             type: "easeBoth"
 85         });
 86         startMove({
 87             el: prevSpan[2],
 88             target: {
 89                 opacity:1,
 90                 left: 53
 91             },
 92             time: 300,
 93             type: "easeBoth"
 94         });
 95     };
 96     prevBtn.onmouseout = function(){
 97          startMove({
 98             el: prevSpan[1],
 99             target: {
100                 left: 0
101             },
102             time: 300,
103             type: "easeBoth"
104         });
105         startMove({
106             el: prevSpan[0],
107             target: {
108                 opacity:0,
109                 left: 0
110             },
111             time: 300,
112             type: "easeBoth"
113         });
114         startMove({
115             el: prevSpan[2],
116             target: {
117                 opacity:0,
118                 left: 65
119             },
120             time: 300,
121             type: "easeBoth"
122         });
123     };
124 })();
125 /* 右侧按钮的鼠标移入移出动画 */
126 (function(){
127     var nextBtn = document.querySelector(‘.next_div‘);
128     var next = document.querySelector(‘.next‘);
129     var nextSpan = next.querySelectorAll(‘span‘);
130     nextBtn.onmouseover = function(){
131          startMove({
132             el: nextSpan[1],
133             target: {
134                 right: 12
135             },
136             time: 300,
137             type: "easeBoth"
138         });
139         startMove({
140             el: nextSpan[0],
141             target: {
142                 opacity:1,
143                 right: 12
144             },
145             time: 300,
146             type: "easeBoth"
147         });
148         startMove({
149             el: nextSpan[2],
150             target: {
151                 opacity:1,
152                 right: 53
153             },
154             time: 300,
155             type: "easeBoth"
156         });
157     };
158     nextBtn.onmouseout = function(){
159          startMove({
160             el: nextSpan[1],
161             target: {
162                 right: 0
163             },
164             time: 300,
165             type: "easeBoth"
166         });
167         startMove({
168             el: nextSpan[0],
169             target: {
170                 opacity:0,
171                 right: 0
172             },
173             time: 300,
174             type: "easeBoth"
175         });
176         startMove({
177             el: nextSpan[2],
178             target: {
179                 opacity:0,
180                 right: 65
181             },
182             time: 300,
183             type: "easeBoth"
184         });
185     };
186 })();
187 /*
188     点击切换动画
189 */
190 (function(){
191     var wrap = document.querySelector(‘#automatic‘);
192     var prevBtn = document.querySelector(‘.prev_div‘);
193     var nextBtn = document.querySelector(‘.next_div‘);
194     var picList = document.querySelectorAll(‘.picList>li‘);
195     var line = document.querySelector(‘.line‘);
196     var attrs = [];
197     var timer = 0;
198     for(var i = 0; i <picList.length; i++){
199         // 先给li在数组中对应的空间内添加一个对象,用于存储它的各项属性数据
200         attrs[i] = {};
201         attrs[i].width = css(picList[i],"width");
202         attrs[i].left = css(picList[i],"left");
203         attrs[i].top = css(picList[i],"top");
204         attrs[i].opacity = css(picList[i],"opacity");
205         attrs[i].zIndex = css(picList[i],"zIndex");
206     }
207     prevBtn.onclick = function(){
208         attrs.push(attrs.shift());
209         setStyle();
210     };
211     nextBtn.onclick = function(){
212         attrs.unshift(attrs.pop());
213         setStyle();
214     };
215     function setStyle(){
216         css(line,"opacity",0);
217         for(var i = 0; i <picList.length; i++){
218             // css(picList[i],"left",attrs[i].left);
219             // css(picList[i],"top",attrs[i].top);
220             // css(picList[i],"opacity",attrs[i].opacity);
221             // css(picList[i],"zIndex",attrs[i].zIndex);
222             // 让图片提前显示出来再变化样式
223             css(picList[i],"zIndex",attrs[i].zIndex);
224             startMove({
225                 el: picList[i],
226                 target: attrs[i],
227                 time: 500,
228                 type: "easeOut",
229                 callBack: function(){
230                     startMove({
231                         el:line,
232                         target:{opacity:1},
233                         time: 200,
234                         type: "easeOut",
235                         callBack:function(){
236                             console.log(1);
237                         }
238                     });
239                 }
240             });
241         }
242     }
243     timer = setInterval(function(){
244         nextBtn.onclick();
245     },3000);
246     wrap.onmouseover = function(){
247         clearInterval(timer);
248     }
249     wrap.onmouseout = function(){
250         timer = setInterval(function(){
251             nextBtn.onclick();
252         },3000);
253     }
254 })();
255 </script>

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>韩雪冬网站效果 - 妙味课堂 - www.miaov.com</title>
<!--[if lte IE 6]>
<script src="js/DD_belatedPNG_0.0.8a.js" type="text/javascript"></script>
<script type="text/javascript">
DD_belatedPNG.fix(‘span‘);
</script>
<![endif]-->
<link href="style.css" rel="stylesheet" type="text/css" />
</head>

<body>

<div id="automatic">

<div class="prev_div"></div>
<a class="prev" href="###">
<span class="ico1"></span>
<span class="ico"></span>
<span class="txt"></span>
</a>

<div class="next_div"></div>
<a class="next" href="###">
<span class="ico1"></span>
<span class="ico"></span>
<span class="txt"></span>
</a>

<div class="line"></div>

<ul class="picList">
<li class="pos_0"><a href="http://www.miaov.com"><img src="images/8.jpg" width="100" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
<li class="pos_1"><a href="http://www.miaov.com"><img src="images/1.jpg" width="270" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
<li class="pos_2"><a href="http://www.miaov.com"><img src="images/2.jpg" width="510" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
<li class="pos_3"><a href="http://www.miaov.com"><img src="images/3.jpg" width="680" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
<li class="pos_4"><a href="http://www.miaov.com"><img src="images/4.jpg" width="510" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
<li class="pos_5"><a href="http://www.miaov.com"><img src="images/5.jpg" width="270" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
<li class="pos_6"><a href="http://www.miaov.com"><img src="images/6.jpg" width="270" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
<li class="pos_6"><a href="http://www.miaov.com"><img src="images/7.jpg" width="270" alt="妙味课堂 www.miaov.com" longdesc="http://www.miaov.com" /></a></li>
</ul>
</div>
<p id="footer"><a href="http://www.miaov.com">妙味课堂 - www.miaov.com</a></p>
</body>
</html>
<script type="text/javascript" src="../../startmove.js"></script>
<script type="text/javascript">
/*初始宽度*/
// 使用函数自执行写法,防止全局污染
(function(){
var picList = document.querySelectorAll(‘.picList>li‘);
for(var i = 0; i <picList.length;i++){
// 为什么要加个[0]?
var img = picList[i].getElementsByTagName("img")[0];
css(picList[i],"width",img.width);
img.style.width = "100%";
}
})();
/* 左侧按钮的鼠标移入移出动画 */
(function(){
// 由于prev内部的元素层级都比它自身高,盖在它上面,所以如果在prev上加onmouseover或者onmouseout,实际上鼠标根本移动不到prev上,所以添加一个层级较高的prevBtn来防止干扰,nextBtn同理
var prevBtn = document.querySelector(‘.prev_div‘);
var prev = document.querySelector(‘.prev‘);
var prevSpan = prev.querySelectorAll(‘span‘);
prevBtn.onmouseover = function(){
startMove({
el: prevSpan[1],
target: {
left: 12
},
time: 300,
type: "easeBoth"
});
startMove({
el: prevSpan[0],
target: {
opacity:1,
left: 12
},
time: 300,
type: "easeBoth"
});
startMove({
el: prevSpan[2],
target: {
opacity:1,
left: 53
},
time: 300,
type: "easeBoth"
});
};
prevBtn.onmouseout = function(){
startMove({
el: prevSpan[1],
target: {
left: 0
},
time: 300,
type: "easeBoth"
});
startMove({
el: prevSpan[0],
target: {
opacity:0,
left: 0
},
time: 300,
type: "easeBoth"
});
startMove({
el: prevSpan[2],
target: {
opacity:0,
left: 65
},
time: 300,
type: "easeBoth"
});
};
})();
/* 右侧按钮的鼠标移入移出动画 */
(function(){
var nextBtn = document.querySelector(‘.next_div‘);
var next = document.querySelector(‘.next‘);
var nextSpan = next.querySelectorAll(‘span‘);
nextBtn.onmouseover = function(){
startMove({
el: nextSpan[1],
target: {
right: 12
},
time: 300,
type: "easeBoth"
});
startMove({
el: nextSpan[0],
target: {
opacity:1,
right: 12
},
time: 300,
type: "easeBoth"
});
startMove({
el: nextSpan[2],
target: {
opacity:1,
right: 53
},
time: 300,
type: "easeBoth"
});
};
nextBtn.onmouseout = function(){
startMove({
el: nextSpan[1],
target: {
right: 0
},
time: 300,
type: "easeBoth"
});
startMove({
el: nextSpan[0],
target: {
opacity:0,
right: 0
},
time: 300,
type: "easeBoth"
});
startMove({
el: nextSpan[2],
target: {
opacity:0,
right: 65
},
time: 300,
type: "easeBoth"
});
};
})();
/*
点击切换动画
*/
(function(){
var wrap = document.querySelector(‘#automatic‘);
var prevBtn = document.querySelector(‘.prev_div‘);
var nextBtn = document.querySelector(‘.next_div‘);
var picList = document.querySelectorAll(‘.picList>li‘);
var line = document.querySelector(‘.line‘);
var attrs = [];
var timer = 0;
for(var i = 0; i <picList.length; i++){
// 先给li在数组中对应的空间内添加一个对象,用于存储它的各项属性数据
attrs[i] = {};
attrs[i].width = css(picList[i],"width");
attrs[i].left = css(picList[i],"left");
attrs[i].top = css(picList[i],"top");
attrs[i].opacity = css(picList[i],"opacity");
attrs[i].zIndex = css(picList[i],"zIndex");
}
prevBtn.onclick = function(){
attrs.push(attrs.shift());
setStyle();
};
nextBtn.onclick = function(){
attrs.unshift(attrs.pop());
setStyle();
};
function setStyle(){
css(line,"opacity",0);
for(var i = 0; i <picList.length; i++){
// css(picList[i],"left",attrs[i].left);
// css(picList[i],"top",attrs[i].top);
// css(picList[i],"opacity",attrs[i].opacity);
// css(picList[i],"zIndex",attrs[i].zIndex);
// 让图片提前显示出来再变化样式
css(picList[i],"zIndex",attrs[i].zIndex);
startMove({
el: picList[i],
target: attrs[i],
time: 500,
type: "easeOut",
callBack: function(){
startMove({
el:line,
target:{opacity:1},
time: 200,
type: "easeOut",
callBack:function(){
console.log(1);
}
});
}
});
}
}
timer = setInterval(function(){
nextBtn.onclick();
},3000);
wrap.onmouseover = function(){
clearInterval(timer);
}
wrap.onmouseout = function(){
timer = setInterval(function(){
nextBtn.onclick();
},3000);
}
})();
</script>





















































































































































































































































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