<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>change/select/submit</title></head><body><form action="www.baidu.com" method="get"><input type="text" value="123"><input type="submit" value="提交"></input> ???</form><select name="alex" id=""> ???<option selected>1</option> ???<option>2</option> ???<option>3</option> ???<option>4</option> ???<option>5</option></select><script src="js/jQuery3.3.1.js"> </script><script> ???$(function () { ???????$("input[type=text]").focus() ; ?//获取焦点 ???????$("input[type=text]").change( ?//change(表单控件的value发生改变时候) ???????????function () { ???????????????console.log($("input[type=text]").val()) ???????????} ???????); ???????$("input[type=text]").select(function () { ?//select 文本被选中 ???????????console.log("选中了") ???????}); ???????$("select").change( ???????????function () { ???????????????console.log($("select").find("option:selected").text()) //获取选中的值 需要获取select才能获取option ???????????} ???????); ???????$("form").submit( ??//表单控件提交 是 ?获取表单事件 ???????????function () { ????????????????????????????alert(`确认提交?`) ???????????} ???????) ???})</script></body></html>JQuery-change/select/submit
原文地址：https://www.cnblogs.com/tcpblog/p/9965875.html