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请教python如何将Hex形式的字符串转换成字节串?

在不使用urllib.parse.unquote等这类现成库函数的前提下,有简单的方法可以实现将Hex形式的字符串转换成字节串吗?

举例:

# 原始字符串
'=E5=85=B6=E4=BB=96=E5=9C=B0=E5=9D=80'
'%E5%85%B6%E4%BB%96%E5%9C%B0%E5%9D%80'
# 目标字节串
b'xE5x85xB6xE4xBBx96xE5x9CxB0xE5x9Dx80'

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a = '=E5=85=B6=E4=BB=96=E5=9C=B0=E5=9D=80'
b = '%E5%85%B6%E4%BB%96%E5%9C%B0%E5%9D%80'
print(bytes.fromhex(a.replace('=','')))
print(bytes.fromhex(b.replace('%','')))


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