标签：资源 string 输出 hello 验证 ESS 距离 user tar
<script> ... </script>
<html>
<head>
<title>JavaScript Page</title>
</head>
?
<body>
<script type="text/javascript">
document.write("<p>Hello world!</p>");
document.write("<p>输出 HTML 标签没压力" +"<i>hello world</i>?</p> ");
</script>
<p> 这是一些静态内容。 </p>
</body>
</html>
<html>
<head>
<title>Data Types and Variables</title>
</head>
?
<body>
<script type="text/javascript">
var x, y;
x= 1024;
y=x;
x = "foobar";
document.write("<p>x = " + y + "</p>");
document.write("<p>x = " + x + "</p>");
</script>
</body>
</html>
<!--将一张纸持续对折，在纸张的厚度达到从地面到太阳的距离之前，需要折叠多少次？-->
<body>
<script type="text/javascript">
var distanceToSun = 93.3e6*5280*12;
var thickness = .002;
var foldCount = 0;
while (thickness < distanceToSun) {
thickness *= 2;
foldCount++;
}
document.write(" 共需要折 <b>" + foldCount +"</b> 次。 ");
</script>
</body>
<script> var txt = "Hello"; document.write(txt.length+"</br>"); // 属性 document.write(txt.replace(‘e‘,‘i‘)+"</br>")//封装函数 document.write(txt.search(‘l‘)); </script>
prompt(message, value)
<body>
<script type="text/javascript">
var userName = prompt(" 请输入姓名： ", " 小明 ");
var userAge = prompt(" 请输入年龄： ", "20");
var userAge = parseFloat(userAge);
if (userAge < 18) {
document.write("<h1> 未成年人适度上网！ </h1>");
}
else {
document.write("<h1> 欢迎你， "+userName+" ！ </h1>");
}
</script>
<p>The rest of the page...</p>
</body>
| Math.sqrt | Math.pow | Math.abs | Math.max | Math.min |
| Math.floor | Math.cell | Math.round | Math.PI | Math.E |
| Math.random（返回0到1的实数） | ||||
<body>
<div style="text-align:center">
<script type="text/javascript">
var roll1 = Math.floor(Math.random()*6) + 1;
var roll2 = Math.floor(Math.random()*6) + 1;
document.write("<img src=‘die" + roll1 + ".gif‘/>");
document.write(" ");
document.write("<img src=‘die" + roll2 + ".gif‘/>")
</script>
</div>
</body>
<!--Math.floor(Math.random()*6) 0-5-->
<script> eval("x=10;y=20;document.write(x*y)"); document.write("<br>" + eval("2+2")); document.write("<br>" + eval(x+17)); </script>
标签：资源 string 输出 hello 验证 ESS 距离 user tar
原文地址：https://www.cnblogs.com/tianjiazhen/p/12235543.html
