[4.1七牛云图片存储](4.1%E4%B8%83%E7%89%9B%E4%BA%91%E5%9B%BE%E7%89%87%E5%AD%98%E5%82%A8.md) [4.2腾讯云图片存储](4.2%E8%85%BE%E8%AE%AF%E4%BA%91%E5%9B%BE%E7%89%87%E5%AD%98%E5%82%A8.md) [4.3阿里云图片存储](4.3%E9%98%BF%E9%87%8C%E4%BA%91%E5%9B%BE%E7%89%87%E5%AD%98%E5%82%A8.md)