接口
默认：https://bing.hecady.com/api/image

1080当天：https://bing.hecady.com/api/image/1080

4k当天：https://bing.hecady.com/api/image/4k

1080随机 ： https://bing.hecady.com/api/image/1080/1

4k随机：https://bing.hecady.com/api/image/1080/1