Web Reference: 写当然也可以用cache，比如你的写入有很高的随机性的时候。 具体什么场景用Buffer什么场景用Cache要根据场景的具体需要决定。 补充2：不要误解Cache或Buffer就一定是内存或者存在什么高速媒介上的东西。 只要相对高速即可。 Here, the buffer array is used to store the data read by read (2) until it's written; then the buffer is re-used. There are more complicated buffer schemes used, for example a circular buffer, where some finite number of buffers are used, one after the next; once the buffers are all full, the index "wraps around" so that the first one is re-used. 常用Buffer一共有多少种啊？ 作用分别是什么？ 一开始以为Buffer只是单纯的缓冲液 后来发现Buffer-GA是悬浮细胞的 GB是裂解使核酸和蛋白质分离的 GD是去蛋白质的漂洗液 还有好多好多，… 显示全部 关注者 7
YouTube Excerpt: Making yourself the all-powerful "Root" super-user on a computer using a
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