js 动态添加标签 div
html：
<div id="container" class="layui-input-block" style="margin-top:10px;margin-left: 20px">
<span id="add" class="layui-badge layui-bg-green" style="cursor: pointer;">+</span>
</div>
js：
var num= 1； var add = document.getElementById(\'add\');
var container =document.getElementById(\'container\');
var node=container.nextSibling;
add.onclick = function(){
oDiv = document.createElement(\'div\');
oDiv.innerHTML = "<div class=\'layui-input-block\' style=\'margin-top:2px;margin-left: 10px\' id=\'container"+num+"\'>"+
"<input type=\'text\' id=\'test\'>"+
"<span onclick=\'test(this)\' class=\'layui-badge layui-bg-green\' style=\'cursor: pointer;\'>-</span>"+
"</div>";
container.parentNode.insertBefore(oDiv, node)
node=oDiv.nextSibling;
num++;
}
function test(test){
test.parentNode.parentNode.removeChild(test.parentNode);
}