本文对coreseek代码中涉及到的一部分算法进行说明，以便在阅读代码的时候，能更容易理解相关的代码。本文所整理的只是其中的部分算法，后面将在逐渐深入理解的基础上，进一步添加。(This article explains some of the algorithms involved in coreseek code so that it's easier to understand the code when you're reading the code. This paper is only part of the algorithm, which will be further added on the basis of further understanding.)