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How to use js to implement web page image carousel

Sep 09, 2017 am 09:47 AM

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The rotation of pictures is commonly used in web page display. Here, four long pictures are used for picture rotation. The following is the code:

f7.html

&lt;!DOCTYPE html&gt;
&lt;html lang=&quot;en&quot;&gt;
&lt;head&gt;
	&lt;meta charset=&quot;UTF-8&quot;&gt;
	&lt;title&gt;MyProject&lt;/title&gt;
	&lt;link rel=&quot;stylesheet&quot; href=&quot;css/f7.css&quot;&gt; 
	&lt;script src=&quot;js/abc.js&quot;&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
	&lt;p class=&quot;top_p&quot;&gt;
		&lt;h1 class=&quot;top_p_h1&quot;&gt;srh&lt;/h1&gt;
	&lt;/p&gt;
	&lt;p class=&quot;second_p&quot;&gt;
		&lt;p id=&quot;transImageBox&quot; class=&quot;trans_image_box&quot;&gt;  
            &lt;img class=&quot;trans_image&quot; src=&quot;image/1.png&quot; /&gt;  
            &lt;img class=&quot;trans_image&quot; src=&quot;image/2.png&quot; /&gt;  
            &lt;img class=&quot;trans_image&quot; src=&quot;image/3.png&quot; /&gt;  
            &lt;img class=&quot;trans_image&quot; src=&quot;image/4.png&quot; /&gt;  
        &lt;/p&gt;
	&lt;/p&gt;
	&lt;p class=&quot;down_p&quot;&gt;
		&lt;p class=&quot;down_p_left&quot;&gt;&lt;/p&gt;
		&lt;p class=&quot;down_p_right&quot;&gt;&lt;/p&gt;
	&lt;/p&gt;
&lt;/body&gt;
&lt;/html&gt;

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f7.css

.top_p{
	width: 100%;
	height: 130px;
	/*background: red;*/
	background-image: url(../image/Koala.jpg);
	text-align: center;
}

/*.top_p_h1{
	text-align: center;
}
*/
.second_p{
	width: 1366px;
	height: 260px;
	/*margin: 20px;  */
    overflow: hidden;
	/*background-image: url(../image/Desert.jpg);*/
	/*background: yellow;*/
	margin-top: 3px;
}

 .trans_image_box {  
        width: 5500px;  /*注意这里是根据图片总长度来确定的，如果小于图片总长度，会出现轮放空白的情况！*/
        height: 300px;  
        -webkit-transition: all 1s ease-in-out;  
        -moz-transition: all 1s ease-in-out;  
        -o-transition: all 1s ease-in-out;  
        transition: all 1s ease-in-out;  
    }  
    .trans_image {  
        width: 1350px;  /*这些根据需求可自定义*/
        height:260px;  
        float: left;
        margin-left: 5px;  
    } 


.down_p{
	margin-top: 3px;
}

.down_p_left{
	width: 25%;
	height: 500px;
	/*background: blue;*/
	background-image: url(../image/Jellyfish.jpg);
	float: left;
}

.down_p_right{
	width: 74%;
	height: 500px;
	/*background: green;*/
	background-image: url(../image/Hydrangeas.jpg);
	float: right;
}

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abc.js

var int=self.setInterval(&quot;change()&quot;,2*1000);  
    var time=self.setInterval(&quot;clock()&quot;,3*1000);  
    var i=1;  
    function clock(){  
        i=i+1;  
        if(i==5){  
            i=1;  
        }  
    }  
    function change(){  
        var a=document.getElementById(&quot;transImageBox&quot;);  
        a.style.marginLeft=(1-i)*1366+&quot;px&quot;;  /*轮放长度请看这里*/
    }

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