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JS点击事件

发布时间:2023-09-06 01:52责任编辑:董明明关键词:点击事件
 1 <!DOCTYPE html> 2 <html lang="cn"> 3 <head> 4 ????<meta charset="UTF-8"> 5 ????<title>Document</title> 6 ????<style> 7 ????????span{ 8 ????????????padding: 5px 10px; 9 ????????????background-color:darkgreen;10 ????????????/* width: 20px; */11 ????????????/* height: 20px; */12 ????????????/* display: block; */13 ????????}14 ????</style>15 ????<script type="text/javascript"> ?16 ????????window.onload = function() { ?17 ????????????var hlist = document.getElementsByTagName(‘span‘); ?18 ????????????//console.log(hlist.length) ??????????????19 ????????????hlist[0].style.backgroundColor = "brown";20 ????????????for (var i = 0; i < hlist.length; i++) { ?21 ????????????????var htag = hlist[i];22 ????????????????htag.onclick = function() { ?23 ????????????????????//alert(this.innerHTML);24 ????????????????????setColor(hlist,this.innerHTML - 1);25 ????????????????}26 ????????????}27 ????????}28 ????????setColor = function(hlist,index){29 ????????????for(var i = 0; i < hlist.length; i++){30 ????????????????if(index != i){31 ????????????????????//hlist[i].setAttribute("class", "a");32 ????????????????????hlist[i].style.backgroundColor = "darkgreen";33 ????????????????}else{34 ????????????????????//hlist[i].setAttribute("class", "b");35 ????????????????????hlist[i].style.backgroundColor = "brown";36 ????????????????}37 ????????????}38 ????????}39 ????</script>40 </head>41 <body>42 ????<span>1</span>43 ????<span>2</span>44 ????<span>3</span>45 ????<span>4</span>46 ????<span>5</span>47 ????<span>6</span>48 ????<span>7</span>49 ????<span>8</span>50 ????<span>9</span>51 </body>52 </html>

JS点击事件

原文地址:https://www.cnblogs.com/bytmit/p/8984637.html

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