必应每日壁纸API
必应每日壁纸接口API https://cn.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1&mkt=zh-CN
接口会返回一个json对象，其中有个 images[0].url就是 壁纸链接
{"images": [{"startdate": "20220609","fullstartdate": "202206091600","enddate": "20220610","url": "/th?id=OHR.SpottedDeers_ZH-CN8790816034_1920x1080.jpg&rf=LaDigue_1920x1080.jpg&pid=hp","urlbase": "/th?id=OHR.SpottedDeers_ZH-CN8790816034","copyright": "斑鹿，滕波尔国家公园，印度 (© Ondrej Prosicky/Shutterstock)","copyrightlink": "https://www.bing.com/search?q=%E6%96%91%E9%B9%BF&form=hpcapt&mkt=zh-cn","title": "在野外发现斑鹿","quiz": "/search?q=Bing+homepage+quiz&filters=WQOskey:%22HPQuiz_20220609_SpottedDeers%22&FORM=HPQUIZ","wp": true,"hsh": "cd595acc63ef8d3eff75ca04c3234b3e","drk": 1,"top": 1,"bot": 1,"hs": []}],"tooltips": {"loading": "正在加载...","previous": "上一个图像","next": "下一个图像","walle": "此图片不能下载用作壁纸。","walls": "下载今日美图。仅限用作桌面壁纸。"}
}
然后用 https://cn.bing.com/接口返回的具体壁纸url
示例: https://cn.bing.com/th?id=OHR.SpottedDeers_ZH-CN8790816034_1920x1080.jpg&rf=LaDigue_1920x1080.jpg&pid=hp
必应首页的壁纸比较好看，可以当作网站或者博客的背景图，但是要是静态网站或者博客每天换就有一些麻烦了，直接在js里面获取必应壁纸地址会出现跨域问题，无法使用，可以用 Nginx 代理转发访问，也可以用其他大佬已经处理好的链接
https://api.oneneko.com/v1/bing_today
使用示例
background-image: url(https://api.oneneko.com/v1/bing_today);
css 使用必应每日API为背景 加遮罩
有些壁纸是很鲜艳，就会导致引入当背景后，网页上的其他元素文字看不清，这时候就可以加一个遮罩层
background: url(https://api.oneneko.com/v1/bing_today) rgba(0, 0, 0, .5) no-repeat center center;background-blend-mode: multiply;
