输入框动态增加和删除并重新编号：
代码附上：
<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>添加元素</title> ???<script src="jquery-3.3.1.js"></script> ???<script> ???????var i = 1; ???????$(function () { ???????????$("#box").on(‘click‘,‘.addp‘,function () { ???????????????//$(‘#pp‘).after($("#pp").clone()); ???????????????var addP = $(this).parent().clone(); ???????????????$(this).parent().after(addP); ???????????????$(‘#pp a‘).each(function (i,e) { ???????????????????$(e).text(i+1); ???????????????}) ???????????}); ???????????$("#box").on("click",‘.delp‘,function () { ???????????????$(this).parent().remove(); ???????????????$(‘#pp a‘).each(function (i,e) { ???????????????????$(e).text(i+1); ???????????????}) ???????????}) ???????}); ???</script></head><body><div id="box"><p id="pp"><a>1</a><input type="text" name="gx"><button class=‘addp‘>+</button><button class=‘delp‘>-</button></p></div></body></html>效果图：
Jquery 实现动态添加输入框&编号
原文地址：https://www.cnblogs.com/pyghost/p/10538575.html