摘要：<!DOCTYPE html><html><head><meta charset="UTF-8"><title>第一個(gè)js程序</title></head><body><script type="text/javascript">document.wr
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>第一個(gè)js程序</title>
</head>
<body>
<script type="text/javascript">
document.write('第一個(gè)js程序');
var x = 5, y = 3;
console.log(x-y);
console.log(x+y);
var name = '張三';
console.log(name);
console.log(typeof(x));
console.log(typeof(y));
console.log(typeof(name));
var bol = true;
console.log(bol);
console.log(typeof(bol));
</script>
</body>
</html>
批改老師：天蓬老師批改時(shí)間：2019-01-14 09:58:10
老師總結(jié)：var x = 5, y = 3; 這樣寫(xiě)沒(méi)錯(cuò),但是推薦一行只寫(xiě)一個(gè)變量定義, 方便寫(xiě)注釋