冒泡排序
function bubbleSort(array){
var tmp;
var len = array.length
for(var i = 0;i < len - 1;i++) {
for(var j = 0;j < len-i-1;j++) {
if(array[j] > array[j+1]) {
tmp = array[j];
array[j] = array[j+1];
array[j+1] = tmp;
}
}
}
return array;
}