JavaScript random numbers and advanced applications with vbscript(asp) random number summary_javascript skills

1. It is the javascript random number function Math.random()
Generate a random number in a specified range
The Math.random() method has no parameters and returns a random number between 0 and 1. If To generate a random
number between 0~n, you can use the following format:

Math.floor(Math.random()*n)
To generate a random number between m~n Random numbers can be used:
Math.floor(Math.random()*n) m

The following is the application:
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javascript Random Number Advanced Application

①Since the creation of JavaScript, many browsers have built-in random number generation methods. For example:
var number = Math.random();
This method produces a floating point number between 0 and 1.
② Random numbers can also be generated based on time. For example:
var now=new Date();
var number = now.getSeconds();
This will produce an integer from 0 to 59 based on the current time.
var now=new Date();
var number = now.getSeconds()C;
This will produce an integer from 0 to 42 based on the current time.
③Here is an excellent random number generator program that can be used in many fields. The code is as follows:

2. vbscript (asp) random number
vbs generates random numbers
A random number without a specified range The code is as follows:

Generate a random number in the specified range The code is as follows:

Here are some example codes for js random numbers The code is as follows:

Demo code:If you need to introduce external Js, you need to refresh to execute ]<script> var GetRandomn = 1; function GetRandom(n){GetRandomn=Math.floor(Math.random()*n+1)} GetRandom("2"); switch(GetRandomn){ case 1: document.write("当随机数为1则显示脚本之家") break; case 2: document.write("当随机数为2则显示www.jb51.net") break; } </script>