本文實例講述了javascript模擬評分控件實現方法。分享給大家供大家參考。具體實現方法如下：
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>動態設置style(評分效果)</title><script type="text/javascript">//查找一個元素在數組中的索引位置function ArrayIndexOf(arr, element) { for (var i = 0; i < arr.length; i++) { if (arr[i] == element) { return i; } } return -1;}function IniEvent() { var tbl = document.getElementById("tblRating"); var tds = tbl.getElementsByTagName("td"); for (var i = 0; i < tds.length; i++) { var td = tds[i]; td.onclick = tdOnClick; td.style.cursor = "pointer"; //設置光標手型 }}function tdOnClick() { var tbl = document.getElementById("tblRating"); var tds = tbl.getElementsByTagName("td"); //查找當前點擊的td的索引 var index = ArrayIndexOf(tds, this); //之前的td改為紅色 for (var i = 0; i <= index; i++) { tds[i].style.background = "red"; } //之后的td改為白色 for (var i = index + 1; i < tds.length; i++) { tds[i].style.background = "white"; }}</script></head><body onload="IniEvent()"> <table id="tblRating"> <tr> <td>☆</td> <td>☆</td> <td>☆</td> <td>☆</td> <td>☆</td> </tr> </table></body></html>希望本文所述對大家的javascript程序設計有所幫助。
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