Javascript语法与注释
1.语法
Js语法向浏览器发出命令;
语句之间的分隔是分号(;),可加可不加;
Js代码是按编写顺序自行的;
实例:
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
var i =10
var j =10
var r =100
var p =i+j+r
document.write(p)
</script>
<br>
<script type="text/javascript">
document.write("hello")
</script>
<br>
<script type="text/javascript">
document.write("hello1")
</script>
<br>
<script type="text/javascript">
document.write("hello2")
</script>
</body>
</html>
1.2.2注释
单行注释:
//
多行注释
/**/