Shulou(Shulou.com)06/03 Report--

This article will explain in detail how to realize the left and right menu interchange of html, Xiaobian thinks it is quite practical, so share it for everyone to make a reference, I hope you can gain something after reading this article.

function selectOne(){// 1. Get the selected element in Select on the left var leftSelect = document.getElementById("leftSelect"); var options = leftSelect.options; //Find Select on the right var rightSelect = document.getElementById("rightSelect"); //traverse to find the selected option for(var i=0; i

< options.length; i++){ var option1 = options[i]; if(option1.selected){ // 2. 将选中的元素添加到右边的Select中就可以 rightSelect.appendChild(option1); } } } //将左边所有的商品移动到右边 function selectAll(){// 1. 获取左边Select中被选中的元素 var leftSelect = document.getElementById("leftSelect"); var options = leftSelect.options; //找到右侧的Select var rightSelect = document.getElementById("rightSelect"); //遍历找出被选中的option for(var i=options.length - 1; i >

=0; i--){ var option1 = options[i]; rightSelect.appendChild(option1); } } classification name virtools categorized Category Products existing goods >>

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