<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>
以上內容就是js設置隨機切換背景圖片的簡單實例,希望能幫助到大家。
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