冒泡排序

var a =[9,8,7,6,5,4,3,2,1];
var b = 0;

 for(var i=0; i<a.length-1;i++)	  
{
    for(var s=0; s<a.length-1;s++)
	{
	   if (a [s] > a [s+1])
	   {	
		   b = a [s];
		   a [s] = a[s+1];
		   a [s+1] = b;
		
	   }
	}			   
}
	alert(a);