https://coderhaotf.github.io/2020/01/27/%E7%BB%8F%E5%85%B8%E6%8E%92%E5%BA%8F%E7%AE%97%E6%B3%95/

排序算法冒泡排序function swap(arr,i,j){
var temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
//,