分享程序员开发的那些事...
更新时间：2023-01-03 18:47:00
可以通过Google图片完成，但需要进行大量自定义，以便脚本按预期运行（包括设置延迟来处理速率限制; Google每个搜索请求的API限制为64个项目这是使用Google Images api的基本示例：
It can be done via Google Images though much customization is required so the script behaves as you intended (including setting up a delay to handle rate-limiting; Google has a rate-limit of 64 items per search request over API) here is a basic example using Google Images api:
<html>
<head>
<title></title>
<script src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load('search', '1');
google.setOnLoadCallback(OnLoad);
var search;
//i suggest instead of this to make keywords list so first to pick random keyword than to do search and pick random image
var keyword = 'mountains';
function OnLoad()
{
search = new google.search.ImageSearch();
search.setSearchCompleteCallback(this, searchComplete, null);
search.execute(keyword);
}
function searchComplete()
{
if (search.results && search.results.length > 0)
{
var rnd = Math.floor(Math.random() * search.results.length);
//you will probably use jQuery and something like: $('body').css('background-image', "url('" + search.results[rnd]['url'] + "')");
document.body.style.backgroundImage = "url('" + search.results[rnd]['url'] + "')";
}
}
</script>
</head>
<body>
</body>
</html>
但我可以建议：来自flickr的随机图片，这是另一个该基本代码（天空是限制）：
However may I suggest instead: Random images from flickr, here is another basic code for that (sky is the limit):
<html>
<head>
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script type="text/javascript">
var keyword = "mountains";
$(document).ready(function(){
$.getJSON("http://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?",
{
tags: keyword,
tagmode: "any",
format: "json"
},
function(data) {
var rnd = Math.floor(Math.random() * data.items.length);
var image_src = data.items[rnd]['media']['m'].replace("_m", "_b");
$('body').css('background-image', "url('" + image_src + "')");
});
});
</script>
</head>
<body>
</body>
</html>