???function addLi(){ ???????var listNum=$(".divList").length; ???????var num= listNum == 0 ? 1: listNum+1 ; ???????console.log(num); ???????var divObj = ‘<div class="divList"><input class="small_input" placeholder="起始年份" name="start_year‘+num +‘" /><input class="small_input" placeholder="结束年份" name="end_year‘+num +‘" /><input class="small_input" placeholder="国家" name="country‘+num +‘" /><input class="small_input" placeholder="项目金额" name="item_amount‘+num +‘" ?/><input class="small_input" placeholder="项目名称" name="item_name‘+num +‘" /></div>‘ ???????$(‘.main_business‘).append(divObj); ???????var input_sum_val=$(".input_sum").val() ?????$(".input_sum").val(++input_sum_val); ???}??????<dd style="height: auto;"> ???????????<label>主营业务</label> ???????????<input class="input_sum" type="hidden" name="max" value="1" /> ???????????<div class="main_business"> ???????????????<input class="small_input" placeholder="起始年份"><input class="small_input" placeholder="结束年份"> ???????????????<input class="small_input" placeholder="国家"><input class="small_input" placeholder="项目金额"><input class="small_input" placeholder="项目名称"> ???????????</div> ??????????<button onclick="addLi()">add</button> ???????</dd>
jQuery动态添加input，name值自增
原文地址：https://www.cnblogs.com/zhangjianzhen/p/9049214.html