日期:2014-05-16 浏览次数:20622 次
<ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul>
<!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> <title></title> <style> </style> </head> <body> <ul> <li style='height:10px;'>1</li> <li style='height:30px;'>2</li> <li style='height:20px;'>3</li> <li style='height:40px;'>4</li> </ul> <script> var a = document.getElementsByTagName('li'); var b = new Array(); for (var i = 0; i < a.length; i++) { b.push(parseInt(a[i].style.height)); if (parseInt(a[i].style.height) == arrMin(b)) { a[i].style.background='red'; } } function arrMin(array) { return Math.min.apply(Math,array); } </script> </body> </html>
------解决方案--------------------
<!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>无标题文档</title> </head> <body> <ul> <li style="height:100px;">1</li> <li style="height:50px;">2</li> <li style="height:40px;">3</li> <li style="height:80px;">4</li> </ul> <script type="text/javascript"> var obj = document.getElementsByTagName('li'); var maxHeight = 100000; var idx = ''; for(var i = 0; i < obj.length; i ++) { if (obj[i].offsetHeight < maxHeight) { maxHeight = obj[i].offsetHeight; idx = i; } } alert('高度最低的是索引号为' + idx + '的li元素'); </script> </body> </html>