内容如题
<!doctype html> <html> <head> <meta charset="utf-8"> <style> img { height:400px; width:1250px; /*使用relative,才能使用left、top性质*/ position:relative; top:0px; left:0px; /*transition:left 0.5s;*/ } </style> </head> <body> <!--overflow:hidden性质使得超出div宽度的部分隐藏--> <div id="buju" style="width:250px;height:400px;margin:80px auto;border:2px black solid;overflow:hidden;"> <img id="tt" src="55.png" alt="tupian" title="coocku"/> <script src="js/jquery-1.6.2.min.js"></script> <script> var num = 0; var x = 0; $(document).ready(function() { //setInterval("huadong()",3000); huadong(); }); window.onfocus = gogo; function gogo() { var st =setInterval(huadong,3000); } function stopgo() { clearInterval(st); } //当网页出去焦点时,需要消掉定时器,因为一旦打开另一个标签页,这个标签页的定时器还在后台进行 window.onblur = stopgo; function huadong() { num++; if(num<4) { $("img").animate({left:"-=250"},500); //document.getElementById("tt").style.left =x +"px"; } else { $("img").animate({left:0},500); //document.getElementById("tt").style.left =0 +"px"; x =0; num =0; } x -= 250; // setTimeout("huadong()",3000); } </script> </div> </body> </html>
时间: 2024-10-02 22:54:32