：

var isChrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;

资料来源： http://davidwalsh.name/detecting-google-chrome-javascript

更新（2015-07-20）：

上述解决方案并不总是奏效。有关更可靠的解决方案，请参见此答案（见下文）。话虽如此，我会避免浏览器检测，并改用功能检测： / p>

The above solution does not always work. A more reliable solution can be found in this answer (see below). That being said, I would avoid browser detection and go with feature detection instead:

var isChrome = /Chrome/.test(navigator.userAgent) && /Google Inc/.test(navigator.vendor); 

您可以包含专门用于chrome的css文件，例如：

You can include a css file specifically for chrome like this:

if (isChrome) {
    document.write('<'+'link rel="stylesheet" href="../component/chromeDefault.css" />');
}

UPDATE（2014-07-29）：

@gillesc有一个更优雅的建议检测Chrome，他在下面的评论中发布了，它也可以在这个问题。

@gillesc has a more elegant suggestion for detecting Chrome which he posted in a comment below and it can also be viewed on this question.

var isChrome = !!window.chrome