急！急！ js中产生不一样的随机数！
如1-30之间，我想产生10个随机整数，但这10个（或15个）个数必须不一样，求高手解答~
[解决办法]
- JScript code
<script type="text/javascript">var r=parseInt(Math.random()*30);var array=[];for(var i=0;i<11;i++){ var flag=0; do { for(var j=0;j<array.length;j++) { if(array[j]==r) {flag=1;break;} } if(!flag) { array[array.length]=r; } else { r=parseInt(Math.random()*30); } }while(!flag);}for(var j=0;j<array.length;j++) document.write(array[j]+" ");</script>
[解决办法]
- HTML code
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML> <HEAD> <TITLE> New Document </TITLE> <META NAME="Generator" CONTENT="EditPlus"> <META NAME="Author" CONTENT=""> <META NAME="Keywords" CONTENT=""> <META NAME="Description" CONTENT=""> <SCRIPT LANGUAGE="JavaScript"> <!-- function getNumb(){ var num = new Array(); for(var i = 0; i < 10; i++){ var val = Math.ceil(Math.random() * 30); var isEqu = false; for(var idx in num){ if(num[idx] == val){isEqu = true; break;} } if(isEqu) i--; else num[num.length] = val; } return num; } function test(){ alert(getNumb()); } //--> </SCRIPT> </HEAD> <BODY onload="test()"> </BODY></HTML>