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Asked:2022-06-12 21:16:32 +0000 UTC2022-06-12 21:16:32 +0000 UTC

如何使用 base64 将图像转换为小写字节？

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我打开文件并使用以下内容

encoded_photo = base64.b64encode(imagefile.read())

输出字节

b'/9j/4QG1RXhpZgAATU0AKgAAAAgABwEQAAIAAAAaAAAAYgEAAAQAAAABAAADwAEBAAQAAAABAAAFAAEyAAIAAAAUAAAAfAESAAMAAAABAAEAAIdpAAQAAAABAAAAlwEPAAIAAAAHAAAAkAAAAABBbmRyb2lkIFNESyBidWl ......

我如何让邮递员以这种方式仅以字符串格式检查相同的东西

'/9j/4QG1RXhpZgAATU0AKgAAAAgABwEQAAIAAAAaAAAAYgEAAAQAAAABAAADwAEBAAQAAAABAAAFAAEyAAIAAAAUAAAAfAESAAMAAAABAAEAAIdpAAQAAAABAAAAlwEPAAIAAAAHAAAAkAAAAABBbmRyb2lkIFNESyBidWl ......
python-3.x

1 个回答

  1. Best Answer

    简单的动作

    its_bytes = b'/9j/4QG1RXhpZgAATU0AKgAAAAgABwEQAAIAAAAaAAAAYgEAAAQAAAABAAADwAEBAAQAAAABAAAFAAEyAAIAAAAUAAAAfAESAAMAAAABAAEAAIdpAAQAAAABAAAAlwEPAAIAAAAHAAAAkAAAAABBbmRyb2lkIFNESyBidWl'

its_string = its_bytes.decode("utf-8")
print(its_string)

# out
# '/9j/4QG1RXhpZgAATU0AKgAAAAgABwEQAAIAAAAaAAAAYgEAAAQAAAABAAADwAEBAAQAAAABAAAFAAEyAAIAAAAUAAAAfAESAAMAAAABAAEAAIdpAAQAAAABAAAAlwEPAAIAAAAHAAAAkAAAAABBbmRyb2lkIFNESyBidWl'

    一切都在built-in数据类型的范围内。关于这个主题的文档

    该方法bytes.decode()返回从给定字节序列解码的字符串。也就是说，在输出中，变量its_string将具有字符串数据类型，这是所需的。

    让我们检查

    >>> print(type(its_string))
<class 'str'>
    • 1

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