<form class="layui-form" action=""> <div class="layui-form-item"> <label class="layui-form-label">报表名称</label> <div class="layui-input-block"> <input type="text" name="reportName" required lay-verify="required" placeholder="请输入报表名称" autocomplete="off" class="layui-input"> </div> </div> <div class="layui-form-item"> <label class="layui-form-label">报表组</label> <div class="layui-input-block"> <select name="reportGroup" lay-verify="required"> <option value=""></option> <option value="group1">分组1</option> <option value="group2">分组2</option> <option value="group3">分组3</option> </select> </div> </div> <div class="layui-form-item"> <label class="layui-form-label">报表路径</label> <div class="layui-input-block"> <input type="text" name="reportUrl" required lay-verify="required" placeholder="请输入报表路径" autocomplete="off" class="layui-input"> </div> </div> <div class="layui-form-item"> <label class="layui-form-label">报表抽样条件路径</label> <div class="layui-input-block"> <input type="text" name="reportCdnUrl" required lay-verify="required" placeholder="请输入抽样条件路径" autocomplete="off" class="layui-input"> </div> </div> <div class="layui-form-item"> <label class="layui-form-label">是否启用</label> <div class="layui-input-block"> <input type="checkbox" name="enable" lay-skin="switch" lay-filter="switchTest" lay-text="启用|禁用"> </div> </div> <div class="layui-form-item"> <div class="layui-input-block"> <button class="layui-btn" lay-submit lay-filter="formDemo">提交</button> <button type="reset" class="layui-btn layui-btn-primary">重置</button> </div> </div> </form> 调整label的宽度为200

可以通过修改CSS样式来调整label的宽度为200，代码如下：

<style>
    .layui-form-label {
        width: 200px;
    }
</style>

将上述代码放在HTML代码之前或者在外部CSS文件中即可。