第1节完成

source/chapters/p01_data_structures_algorithms.rst

@@ -2,12 +2,11 @@
 第一章：数据结构和算法
 =============================
 
-Python provides a variety of useful built-in data structures, such as lists, sets, and dictionaries.
-For the most part, the use of these structures is straightforward. However,
-common questions concerning searching, sorting, ordering, and filtering often arise.
-Thus, the goal of this chapter is to discuss common data structures and algorithms
-involving data. In addition, treatment is given to the various data structures contained
-in the collections module.
+Python提供了大量的内置数据结构，包括列表，集合以及字典。大多数情况下使用这些数据结构式很简单的。
+但是，我们也会经常碰到到诸如查询，排序和过滤等等这些普遍存在的问题。
+因此，这一章的目的就是讨论这些比较常见的问题和算法。
+另外，我们也会给出在集合模块collections当中操作这些数据结构的方法。
+
 
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