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1.下载less包，官网
2.引入less文件
<link rel="stylesheet/less" type="text/css" href="test.less" />
3.引入config.js
3.引入less.js
4.less.watch();开启观察者模式，
config.js
less = {
env: "development", // or "production"
async: false, // load imports async
fileAsync: false, // load imports async when in a page under
// a file protocol
poll: 10000, // when in watch mode, time in ms between polls
functions: {}, // user functions, keyed by name
dumpLineNumbers: "all", // "comment" or "mediaQuery" or "all"
relativeUrls: false, // whether to adjust url‘s to be relative
// if false, url‘s are already relative to the
// entry less file
rootpath: ":/" // a path to add on to the start of every url
//resource
};
test.html
<!DOCTYPE html> <html> <head> <title>hah</title> <link rel="stylesheet/less" type="text/css" href="test.less" /> <link rel="stylesheet/less" type="text/css" href="test2.less" /> <script src="./config.js"></script> <script src="dist/less.js"></script> <script>less.watch();</script> </head> <body> <div class="box"> 你好 </div> </body> </html>
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原文地址：http://www.cnblogs.com/jdhu/p/4375147.html
