"I'll see you online," he added.
If those don’t render for you for whatever reason, UPPER_HALF_BLOCK is a square that takes up the full width and upper half of a character, and FULL_BLOCK is a rectangle that takes up the full width and height of a character.
，这一点在同城约会中也有详细论述
至于 Thumbs.db，在 Windows 早期版本中确实随文件夹存储，但自 Windows Vista 起，缩略图缓存已被改为中心化存储在用户的 AppData 目录下（文件名为 thumbcache_xxx.db）。这一改变使得该文件淡出了普通用户的视野。
一文彻底搞懂深度学习和机器学习的区别！