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Play with js settings to randomly switch background images

小云云
小云云Original
2017-12-22 10:01:081724browse

The function of js should not be underestimated. If you want to develop something well, js will greatly increase your score. This article will bring you a simple example of js setting to randomly switch background images. The editor thinks it is quite good, so I will share it with you now and give it as a reference for everyone. Let’s follow the editor to take a look, I hope it can help everyone.

The examples are as follows:

<script>
 
var imgs =["http://images.cnblogs.com/cnblogs_com/xiaobo-Linux/1112236/o_2.jpg",
       "http://images.cnblogs.com/cnblogs_com/xiaobo-Linux/1112236/o_default.png",
       "http://images.cnblogs.com/cnblogs_com/xiaobo-Linux/1112236/o_3.jpg",
       "http://images.cnblogs.com/cnblogs_com/xiaobo-Linux/1112236/o_1.jpg",
       "http://images.cnblogs.com/cnblogs_com/xiaobo-Linux/1112236/o_4.jpg",
       "http://images.cnblogs.com/cnblogs_com/xiaobo-Linux/1112236/o_5.jpg",
       "http://images.cnblogs.com/cnblogs_com/xiaobo-Linux/1112236/o_6.jpg",
       "http://images.cnblogs.com/cnblogs_com/xiaobo-Linux/1112236/o_default-2.jpg",
       ];  
 
var index=Math.floor(Math.random()*8);
var img = imgs[index];
    function time(){
        
       document.body.style.backgroundImage="url("+img+")";
        
    }  
 
document.body.onload = function(){
 time();
}
</script>

The code looks very simple, I wonder if you have mastered it? Hurry up and give it a try.

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