HTML script
HTML script generally refers to some scripting languages, such as JavaScript, VBScript, etc.
The way to embed a script in HTML is:
<script type="text/javascript">
//JavaScript code
</script>
Scripts are mainly used to operate HTML documents and implement related functions or special effects.
a <script> tag
If you want to insert a JavaScript script into an HTML page, please use the <script> tag. <script> and </script> tell JavaScript where to start
and end. The lines between
<script> and </script> contain JavaScript:
##<span style="font-size: 18px;"><script type="text/javascript">
alert("Welcome to the world of JavaScript!!!");
</script></span>
二 <noscript> Tag## The
#<noscript> tag provides alternative content when scripting is not available, such as when scripting is disabled in the browser, or when the browser does not support client-side scripting. . The <noscript> element can contain all elements found within the body element of a normal HTML page.
Only when the browser does not support scripts or scripts are disabled, the content in the <noscript> element will be displayed:
<noscript>Sorry, your The browser does not support JavaScript!</noscript>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript脚本语言</title>
<script type="text/javascript">
function myFunction()
{
document.getElementById("demo").innerHTML="My First JavaScript Function";
}
</script>
</head>
<body>
<h1>My Web Page</h1>
<p id="demo">A Paragraph.</p>
<button type="button" onclick="myFunction()">点击这里</button>
</body>
</html> Tips: You don’t need to understand the above code, just understand it. Get the current time instance:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript脚本语言</title>
<script type="text/javascript">
window.onload = function () {
setTime();
}
function setTime() {
var div = document.getElementById("d1");
var time = new Date();
//如果获取月份（月份从0开始 + 1）
div.innerHTML = set(time.getHours()) + ":" + set(time.getMinutes()) + ":" + set(time.getSeconds());
}
//
function set(num) {
if (num < 10) {
return "0" + num;
} else {
return num;
}
}
setInterval("setTime()",1000);
</script>
</head>
<body>
<div id="d1"></div>
</body>
</html>Try it
