tinylambda
diff --git a/‎cookbook/c02/p16_textwrap.py‎
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diff --git a/‎source/c02/p16_reformat_text_to_fixed_number_columns.rst‎
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@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+# -*- encoding: utf-8 -*-
+"""
+Topic: 格式化字符串为指定宽度
+Desc : 
+"""
+import textwrap
+import os
+
+
+def reformat_width():
+    s = "Look into my eyes, look into my eyes, the eyes, the eyes, \
+    the eyes, not around the eyes, don't look around the eyes, \
+    look into my eyes, you're under."
+
+    print(textwrap.fill(s, 70))
+    print('*' * 40)
+    print(textwrap.fill(s, 40))
+    print('*' * 40)
+    print(textwrap.fill(s, 40, initial_indent='    '))
+    print('*' * 40)
+    print(textwrap.fill(s, 40, subsequent_indent='    '))
+
+    # 获取终端屏幕尺寸
+    print(os.get_terminal_size().columns)
+
+
+if __name__ == '__main__':
+    reformat_width()
@@ -1,18 +1,75 @@
-============================
-2.16 格式化字符串为指定列宽
-============================
+==========================
+2.16 以指定列宽格式化字符串
+==========================
 
 ----------
 问题
 ----------
-todo...
+你有一些长字符串，想以指定的列宽将它们重新格式化。
+
+|
 
 ----------
 解决方案
 ----------
-todo...
+Use the textwrap module to reformat text for output. For example, suppose you have
+the following long string:
+使用textwrap模块来格式化字符串的输出。比如，加入你有下列的长字符串：
+
+.. code-block:: python
+
+    s = "Look into my eyes, look into my eyes, the eyes, the eyes, \
+    the eyes, not around the eyes, don't look around the eyes, \
+    look into my eyes, you're under."
+
+下面演示使用textwrap格式化字符串的多种方式：
+
+.. code-block:: python
+
+    >>> import textwrap
+    >>> print(textwrap.fill(s, 70))
+    Look into my eyes, look into my eyes, the eyes, the eyes, the eyes,
+    not around the eyes, don't look around the eyes, look into my eyes,
+    you're under.
+
+    >>> print(textwrap.fill(s, 40))
+    Look into my eyes, look into my eyes,
+    the eyes, the eyes, the eyes, not around
+    the eyes, don't look around the eyes,
+    look into my eyes, you're under.
+
+    >>> print(textwrap.fill(s, 40, initial_indent='    '))
+        Look into my eyes, look into my
+    eyes, the eyes, the eyes, the eyes, not
+    around the eyes, don't look around the
+    eyes, look into my eyes, you're under.
+
+    >>> print(textwrap.fill(s, 40, subsequent_indent='    '))
+    Look into my eyes, look into my eyes,
+        the eyes, the eyes, the eyes, not
+        around the eyes, don't look around
+        the eyes, look into my eyes, you're
+        under.
 
 ----------
 讨论
 ----------
-todo...
+textwrap模块对于字符串打印是非常有用的，特别是当你希望输出自动匹配终端大小的时候。
+你可以使用os.get_terminal_size()方法来获取终端的大小尺寸。比如：
+
+.. code-block:: python
+
+    >>> import os
+    >>> os.get_terminal_size().columns
+    80
+    >>>
+
+The fill() method has a few additional options that control how it handles tabs, sentence
+endings, and so on. Look at the documentation for the textwrap.TextWrapper
+class for further details.
+
+fill()方法接受一些其他可选参数来控制tab，语句结尾等。参阅 `textwrap.TextWrapper文档`_ 获取更多内容。
+
+.. _textwrap.TextWrapper文档:
+    https://docs.python.org/3.3/library/textwrap.html#textwrap.TextWrapper
+