?????????
????chrome???????????????????????????????????????????в?????????????????????????????θ?Ч???????????????????о???????BrowserSync???????????????????????????BrowserSync????????????????
????????
????BrowserSync????PC????????豸????????????????????????????????2??????????????????????豸????е??????????????????????????????????

???????
????BrowserSync?????Node.js????????Node??飬???????????nodejs
??????nodejs?????
???????nodejs????????node??msi?????????????window7?????γ??????????????????????your system has not been modified...?????????????????????????????????nodejs
??????1??????node.exe
??????2???????°汾??npm zip????????
??????3??????????λ?????D?????????????nodejs??????????????????????????????npm????
??????4?????????????????????????PATH??????node.exe????D: odejs??????????????????NODE_PATH????D: odejs ode_modules

??????5?????express????cmd??????(??nodejs???￡?????shift???????????????????"????????????"??????)??????????ж?λ????Node???￡????????npm install express
??????6?????????????????????????node -v??????nodejs??汾??????
????????
????nodejs????????????BrowserSync????Щ???????????????????
??????1??BrowserSync???
????????????????????????????
????npm install -g browser-sync
??????2??BrowserSync????
????files ·????????????и??????????????????????????????????????????????????
????browser-sync start --server --files "css/*.css?? *.html"
??????3????nodejs??????????index.html????????????????′???
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
div{
height: 100px;
width: 100px;
background-color: lightblue;
}
</style>
</head>
<body>
<div>????????</div>
</body>
</html>
????????????????￡?