一、需求
二、实现
<div style="margin-bottom: 55px"><form action="" method="post" enctype="multipart/form-data" id="reportForm" name="sjf" style="margin-left: 25px;margin-bottom: 50px;"><table id="tableContent"><tbody>{foreach $list ke=>va}<tr id="line-1" class="layui-form layui-row layui-col-space16 tr-line"><td class="layui-form"><select name="selectkey[]" class="tr-select" style="width:186px;display:inline" oninput="handleSelectChange(event)"><option value="" >请选择</option>{foreach $selectList k=>v}<option value="{$v['key']}" {if $ke == $v['key']} selected="selected" {/if} >{$k}</option>{/foreach}</select></td><td class="td_Item"><input type="text" name="selectval[]" class="stepName" autocomplete="off" value="{$va}" oninput="handleInputChange(event)"></td><td class="td_Oper" style="cursor: pointer;"><i class="layui-icon layui-icon-close" onclick="remove_line(this);"></i> </td><td class="td_Oper" style="cursor: pointer;"><i class="layui-icon layui-icon-addition" onclick="add_line(this);"></i> </td></tr>{/foreach}</tbody></table><input type="hidden" name="immongoid" class="stepName" autocomplete="off" value="{$val['MongoID']}"><script type="text/javascript">//添加新记录function add_line(index) {//克隆上一行$("#tableContent tbody tr:last-child").clone().appendTo("#tableContent tbody");//将行尾克隆的值清空$("#tableContent tbody tr:last-child").find(":input").val('');$("#tableContent tbody tr:last-child").find("input").css('border-color','#468')}//删除选择记录function remove_line(index) {var keyindex = $("#tableContent tbody tr").index();if (keyindex > 0) {console.log($(index).parent().parent())$(index).parent().parent().remove();} else {layer.msg('第一行不能删除')return false;}}function closeFun(){$('.stepName').each(function(){$(this).css('border-color','#468')})$('.tr-select').each(function(){$(this).css('border-color','#468')})}function handleInputChange(e){$('.stepName').each(function(){if($(this)[0] == e.target){$(this).css('border-color','#468')}})}function handleSelectChange(e){$('.tr-select').each(function(){if($(this)[0] == e.target){$(this).css('border-color','#468')}})}# 表单验证并保存，一行中有未填写内容时input框标红并阻止提交function submitClick(inp){let isCheck = true;$('.tr-line').each(function(index,key){if($(this).find('select')){if($(this).find('select option:selected').text() == '请选择'){$(this).find('select').css('border-color','red');isCheck = false}else{$(this).css('border-color','#468')}if($(this).find('input').val() == ''){$(this).find('input').css('border-color','red');isCheck = false}else{$(this).css('border-color','#468')}}})if(!isCheck){return}$.ajax({url:'/ajax/test',data:$("#reportForm").serialize(),async:false,type:'post',dataType:'json',success:function(data){layer.msg('保存成功')}});}</script></form><div class="want_box-bottom1" style="margin-left: 32px;"><span><input type="submit" value="保存" onclick="submitClick(this)" class="gray-but"></span></div>{/if}</div>