This paper illustrates the method of realizing simple random lottery drawing by JS. Share to everyone for your reference. The implementation methods are as follows:
Copy Code code as follows:
<title>js Random Draw Procedure </title>
<body>
<script type= "Text/javascript" >
var alldata = "A,b,c,d,e,f,g,h,i,j,k"
var Alldataarr = Alldata.split (",");
var num = alldataarr.length-1;
var timer
function Change ()
{
document.getElementById ("Oknum"). InnerHTML = Alldataarr[getrnd (0,num)];
}
function Start () {
Clearinterval (timer);
Timer = setinterval (' Change () ', 100);
}
function ok () {
Clearinterval (timer);
document.getElementById ("Showresult"). Value=document.getelementbyid ("Oknum"). innertext;
}
function Getrnd (Min,max) {
Return parseint (Math.random () * (max-min+1));
}
</script>
<center>
<div id= "Oknum" name= "Oknum" > Please click Start </div>
<button onclick= "Start ()" accesskey= "S" > Start </button>
<button onclick= "OK ()" accesskey= "O" > Stop </button>
Your choice is:
<input type= "text" id= "Showresult" "value=" ">
</center>
</body>
I hope this article will help you with your JavaScript programming.
