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s = u'中文' f = codecs.open('ufile.log', 'w', "UTF-8") f.write(s) f.close()
Python中如何将文件保存为utf-8（带BOM）的格式，如果使用以下代码，则文件的格式为：utf-8无BOM
学习是最好的投资！
f = codecs.open('ufile.log', 'w', 'utf_8_sig')
参见: 7.8.6. encodings.utf_8_sig — UTF-8 codec with BOM signature
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
参见: 7.8.6. encodings.utf_8_sig — UTF-8 codec with BOM signature