https://blog.tanteng.space/tags/programming/Recent content in Programming on Tony老师的博客HugozhMon, 26 Mar 2018 00:00:00 +0000https://blog.tanteng.space/2018/03/copy-on-write/Mon, 26 Mar 2018 00:00:00 +0000https://blog.tanteng.space/2018/03/copy-on-write/<p><strong>Copy-on-Write</strong>（缩写为 COW）是一种优化策略，核心思想是：<strong>共享 → 复制，但等到真正需要修改时才复制</strong>。</p>