求问怎么通过递归实现多维数组的去重，递归的出口怎么写？
https://www.baidu.com/s?ie=UTF-8&wd=JS%20%E5%A4%9A%E7%BB%B4%E6%95%B0%E7%BB%84%20%E5%8E%BB%E9%87%8D
求问怎么通过递归实现多维数组的去重，递归的出口怎么写？
https://www.baidu.com/s?ie=UTF-8&wd=JS%20%E5%A4%9A%E7%BB%B4%E6%95%B0%E7%BB%84%20%E5%8E%BB%E9%87%8D