34 lines
988 B
Python
34 lines
988 B
Python
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import re
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from pyasn1.codec.ber.decoder import decode
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if __name__ == '__main__':
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data = b'Hello World'
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# 目前字节串已经支持大部分和字符串相同的操作
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data05 = data[0:5]
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print(data05)
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is_startwith_hello = data.startswith(b'Hello')
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print(is_startwith_hello)
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data_sp = data.split()
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print(data_sp)
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data_suka = data.replace(b'Hello', b'Hello Suka')
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print(data_suka)
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# 唯一需要注意的是，如果用re做了匹配，那记得要用字节串的形式来匹配
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data = b'foo:bar,spam'
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try:
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re.split('[:,]', data)
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except:
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print("匹配错误，换字节串匹配")
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data_bsp = re.split(b'[:,]', data)
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print(data_bsp)
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# 字节串上的字符不能直接被识别，需要先用ascii解码
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print(data[0])
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print(data.decode("ascii")[0])
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# 我的建议是除非万不得已，请不要用字节串处理文本，统一使用ascii解码成字符串后再进行操作
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