javascript产生随机数方法汇总

<script>
 2function GetRandomNum(Min,Max)
{ 
  var Range = Max - Min; 
  var Rand = Math.random(); 
  return(Min + Math.round(Rand * Range)); 
} 
 8var num = GetRandomNum(1,10); 
 9alert(num); 
</script>
 
var chars = ['0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];
 
function generateMixed(n) {
   var res = "";
   for(var i = 0; i < n ; i ++) {
     var id = Math.ceil(Math.random()*35);
     res += chars[id];
   }
   return res;
}