/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: xiaobeicn https://cdn.slidesharecdn.com/profile-photo-xiaobeicn-48x48.jpg?cb=1523592909 The better you understand what you are doing, the better you will do it. https://github.com/xiaobeicn