iv class="layui-card-body">
				<button id="changeIframe" class="pear-btn">切换页面</button>
			</div>
		</div>
		<div class="layui-card">
			<div class="layui-card-body">
				<button id="jump" class="pear-btn">兼容切换</button>
			</div>
		</div>
		<div class="layui-card">
			<div class="layui-card-body">
				<button id="fullScreen" class="pear-btn">有点多余</button>
			</div>
		</div>
		<div class="layui-card">
			<div class="layui-card-body">
				<table class="layui-table">
				  <colgroup>
	