<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>ajax</title></head><body><ul></ul><script src="js/jQuery3.3.1.js"></script><script> ???$(function () { ???????$.ajax( ??//ajax 是jquery封装好的一个事件 ???????????{url: "https://free-api.heweather.com/s6/weather/now?location=changping,北京&key=83a29964479c488d8b42d884bbf0fcb0", ?//访问服务器获取数据 ????????????type: "get", // 访问方式 ????????????success:function (data) { //请求成功作用域 ????????????????let arr = data.HeWeather6[0].now; ????????????????console.dir(arr); ????????????????Object.keys(arr).forEach(function (item) { ??//遍历对象 }{字典} ????????????????????$(`<li>${item }: ${arr[item]}</li>`).appendTo("ul") ??//使用forEach ????????????????????}) ????????????}, ????????????????error: function (data) { //请求失败作用域 ????????????????????console.log(data) ????????????????} ???????????} ???????????) ???})</script></body></html>ajax
原文地址：https://www.cnblogs.com/tcpblog/p/9966192.html