利用随机函数定义10对(x,y)值，由此创建的Point类实例存入一个数组中，按与原点（0，0）的距离由小到大的顺序输出所有的点及到原点的距离。-Random function is defined using 10 pairs (x, y) value, thus creating the Point class instance into an array, according to the origin (0,0) the order from small to large output of all the points and the origin distance.