冒泡排序
    var arr=[4,2,1,3,6,5];
    for(var i=0;i<arr.length;i++ ){
    	for(var j=i+1;j<arr.length;j++){
    		if(arr[i]>arr[j]){
    			var temp = arr[i];
    			arr[i] =arr[j]
    			arr[j] =temp
    		}
    	}
    }
       for(var x in arr){
       	document.write(arr[x]+",")
}
原文:http://www.cnblogs.com/hezhilong/p/7583160.html