diff --git a/.gitignore b/.gitignore
index d163863..67152c6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-build/
\ No newline at end of file
+build/
+.idea/
+*.pyc
\ No newline at end of file
diff --git a/.idea/.name b/.idea/.name
new file mode 100644
index 0000000..fb08791
--- /dev/null
+++ b/.idea/.name
@@ -0,0 +1 @@
+python3-cookbook
\ No newline at end of file
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..e206d70
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,5 @@
+
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+
+
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..c66df00
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,11 @@
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\ No newline at end of file
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000..3b31283
--- /dev/null
+++ b/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,7 @@
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\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..d6fcf67
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,5 @@
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diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..bfaa75b
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,9 @@
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diff --git a/.idea/python3-cookbook.iml b/.idea/python3-cookbook.iml
new file mode 100644
index 0000000..a34a857
--- /dev/null
+++ b/.idea/python3-cookbook.iml
@@ -0,0 +1,9 @@
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diff --git a/.idea/scopes/scope_settings.xml b/.idea/scopes/scope_settings.xml
new file mode 100644
index 0000000..922003b
--- /dev/null
+++ b/.idea/scopes/scope_settings.xml
@@ -0,0 +1,5 @@
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\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..c80f219
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,7 @@
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diff --git a/.idea/workspace.xml b/.idea/workspace.xml
new file mode 100644
index 0000000..c6274b0
--- /dev/null
+++ b/.idea/workspace.xml
@@ -0,0 +1,518 @@
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diff --git a/cookbook/__init__.py b/cookbook/__init__.py
new file mode 100644
index 0000000..0baca96
--- /dev/null
+++ b/cookbook/__init__.py
@@ -0,0 +1,7 @@
+#!/usr/bin/env python
+# -*- encoding: utf-8 -*-
+"""
+Topic: sample
+Desc :
+"""
+
diff --git a/cookbook/c01/__init__.py b/cookbook/c01/__init__.py
new file mode 100644
index 0000000..0baca96
--- /dev/null
+++ b/cookbook/c01/__init__.py
@@ -0,0 +1,7 @@
+#!/usr/bin/env python
+# -*- encoding: utf-8 -*-
+"""
+Topic: sample
+Desc :
+"""
+
diff --git a/source/aboutme.rst b/source/aboutme.rst
index 18ae9a6..ce235db 100644
--- a/source/aboutme.rst
+++ b/source/aboutme.rst
@@ -9,11 +9,15 @@
* 博客： http://yidao620c.iteye.com/
* GitHub： https://github.com/yidao620c
+|
+|
+|
+
*主要贡献者*
1. 夏丹 (767962863@qq.com)
-2. 梁永威 (415320557@qq.com)
-3. 莫浩文 (453166604@qq.com)
+2. 张三 (zhangsan@gmail.com)
+3. lisi (lisi@gmail.com)
|
|
diff --git a/source/c01/p01_unpack_sequence_into_separate_variables.rst b/source/c01/p01_unpack_sequence_into_separate_variables.rst
index f6e9479..0f2dae2 100644
--- a/source/c01/p01_unpack_sequence_into_separate_variables.rst
+++ b/source/c01/p01_unpack_sequence_into_separate_variables.rst
@@ -5,14 +5,79 @@
----------
问题
----------
-You have an N-element tuple or sequence that you would like to unpack into a collection of N variables.
+现在有一个包含N个元素的元祖或者是序列，请问怎样将它里面的值解压后同时赋值给N变量
----------
解决方案
----------
-Any sequence (or iterable) can be unpacked into variables using a simple assignment operation. The only requirement is that the number of variables and structure match the sequence. For example:
+任何的序列(或者是可迭代对象)可以通过一个简单的赋值语句解压并赋值给多个变量。
+唯一的前提就是变量的数量必须跟序列元素的数量是一样的。代码示例：
+
+.. code-block:: python
+
+ >>> p = (4, 5)
+ >>> x, y = p
+ >>> x
+ 4
+ >>> y
+ 5
+ >>>
+ >>> data = [ 'ACME', 50, 91.1, (2012, 12, 21) ]
+ >>> name, shares, price, date = data
+ >>> name
+ 'ACME'
+ >>> date
+ (2012, 12, 21)
+ >>> name, shares, price, (year, mon, day) = data
+ >>> name
+ 'ACME'
+ >>> year
+ 2012
+ >>> mon
+ 12
+ >>> day
+ 21
+ >>>
+
+如果变量个数和序列元素的个数不匹配，会产生一个异常，代码示例：
+
+.. code-block:: python
+
+ >>> p = (4, 5)
+ >>> x, y, z = p
+ Traceback (most recent call last):
+ File "", line 1, in
+ ValueError: need more than 2 values to unpack
+ >>>
----------
讨论
----------
-Unpacking actually works with any object that happens to be iterable, not just tuples or lists. This includes strings, files, iterators, and generators. For example:
\ No newline at end of file
+实际上，这种解压赋值可以用在任何可迭代对象上面，而不仅仅是列表或者元祖。
+包括字符串，文件对象，迭代器和生成器。代码示例：
+
+.. code-block:: python
+
+ >>> s = 'Hello'
+ >>> a, b, c, d, e = s
+ >>> a
+ 'H'
+ >>> b
+ 'e'
+ >>> e
+ 'o'
+ >>>
+
+有时候，你可能只想解压一部分，丢弃其他的值。对于这种情况Python并没有提供特殊的语法。
+但是你可以使用任意变量名去占位，到时候丢掉这些变量就行了。代码示例：
+.. code-block::python
+
+ >>> data = [ 'ACME', 50, 91.1, (2012, 12, 21) ]
+ >>> _, shares, price, _ = data
+ >>> shares
+ 50
+ >>> price
+ 91.1
+ >>>
+
+你必须保证你选用的那些占位变量名在其他地方没被使用到。
\ No newline at end of file
diff --git a/source/chapters/p01_data_structures_algorithms.rst b/source/chapters/p01_data_structures_algorithms.rst
index c39aa8c..4b8168e 100644
--- a/source/chapters/p01_data_structures_algorithms.rst
+++ b/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。
+
Contents: