matplotlib画图中文乱码的解决办法

原文地址:http://www.pythoner.com/200.html

matplotlib是Python著名的绘图库，默认并不支持中文显示，因此在不经过修改的情况下，无法正确显示中文。本文将介绍如何解决这一问题的方法。

1.修改matplotlibrc文件
进入Python安装目录下的Lib\site-packages\matplotlib\mpl-data目录，打开matplotlibrc文件，删除font.family和font.sans-serif两行前的#，并在font.sans-serif后添加微软雅黑字体（Microsoft YaHei），代码如下：

matplotlibrc文件修改

Python

<textarea wrap="soft" class="crayon-plain print-no" data-settings="dblclick" readonly="readonly" style="margin: 0px; padding-top: 0px; padding-right: 5px; padding-left: 5px; outline: none; width: 725.344px; overflow: hidden; height: 64px; position: absolute; opacity: 0; border: 0px; border-radius: 0px; box-shadow: none; white-space: pre; word-wrap: normal; resize: none; color: rgb(0, 0, 0); tab-size: 4; z-index: 0; font-family: Monaco, MonacoRegular, 'Courier New', monospace !important; font-size: 12px !important; line-height: 15px !important; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"></textarea>

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font . family          : sans - serif font . sans - serif      : Microsoft YaHei , Bitstream Vera Sans , Lucida Grande , Verdana , Geneva , Lucid , Arial , Helvetica , Avant Garde , sans - serif

2.代码中别忘了unicode编码

matplotlib 示例代码

Python

<textarea wrap="soft" class="crayon-plain print-no" data-settings="dblclick" readonly="readonly" style="margin: 0px; padding-top: 0px; padding-right: 5px; padding-left: 5px; outline: none; width: 725.344px; overflow: hidden; height: 139px; position: absolute; opacity: 0; border: 0px; border-radius: 0px; box-shadow: none; white-space: pre; word-wrap: normal; resize: none; color: rgb(0, 0, 0); tab-size: 4; z-index: 0; font-family: Monaco, MonacoRegular, 'Courier New', monospace !important; font-size: 12px !important; line-height: 15px !important; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"></textarea>

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import matplotlib . pyplot as plt   plt . clf ( )    # 清空画布 plt . plot ( [ 1 , 2 , 3 ] , [ 4 , 5 , 6 ] ) plt . xlabel ( u "横轴" ) plt . ylabel ( u "纵轴" ) plt . title ( "pythoner.com" ) < a href = "http://www.pythoner.com/wp-content/uploads/2013/05/test.png" > < img src = "http://www.pythoner.com/wp-content/uploads/2013/05/test-300x226.png" alt = "matplotlib示例" width = "300" height = "226" class = "alignnone size-medium wp-image-201" / > < / a > plt . show ( )