Python编码-python2.7编码乱码

Python编码

转码思路

字符串在Python内部的表示是unicode编码，在编码转换时通常需要以unicode作为中间编码。

先将其他编码的字符串解码(decode)成unicode，再从unicode编码(encode)成另一种编码。

转码举例

s.decode('utf-8', 'ignore').encode('gbk', 'ignore')

先由utf-8转为unicode，再由unicode转为gbk，ignore表示忽略非法字符

Python

s = <span class="hljs-string">u'中文'</span> <span class="hljs-comment"># s为unicode</span> <span class="hljs-keyword">print</span> isinstance(s, unicode) <span class="hljs-comment"># True</span> <span class="hljs-keyword">print</span> s.encode(<span class="hljs-string">'utf-8'</span>, <span class="hljs-string">'ignore'</span>) <span class="hljs-comment"># 中文</span> <span class="hljs-comment"># 由unicode转为utf-8，ignore表示忽略非法字符</span>

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s = < span class = "hljs-string" > u '中文' < / span > < span class = "hljs-comment" > # s为unicode</span> < span class = "hljs-keyword" > print < / span > isinstance ( s , unicode ) < span class = "hljs-comment" > # True</span> < span class = "hljs-keyword" > print < / span > s . encode ( < span class = "hljs-string" > 'utf-8' < / span > , < span class = "hljs-string" > 'ignore' < / span > ) < span class = "hljs-comment" > # 中文</span> < span class = "hljs-comment" > # 由unicode转为utf-8，ignore表示忽略非法字符</span>

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