对于 email.header.Header()这个类的理解有一点疑问,求 V 友指教。 - V2EX
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Ctry

对于 email.header.Header()这个类的理解有一点疑问,求 V 友指教。

  •  1
     
  •   Ctry Jan 24, 2018 2663 views
    This topic created in 3029 days ago, the information mentioned may be changed or developed.

    这是 Header()类: email.header.Header(s=None, charset=None, maxlinelen=None, header_name=None, continuation_ws=' ', errors='strict')

    其中参数的含义理解如下: s:标头的值,也就是对应 From、To、Subject 的值; charset:字符集格式,默认是 ASCII,但是一般指定 UTF-8 格式以兼容更多字符; header_name:标头名,就是 From、To、Subject、Time 等;

    我的疑问就是: 1.maxlinelen 参数的含义是什么? 网上查找资料,对这个参数的描述解释是:最大行长度可以通过 maxlinelen 明确指定。为了将第一行拆分为较短的值(以考虑不包括在 s 中的字段报头,例如 Subject )传递 header_name 中的字段的名称。默认的 maxlinelen 是 78。 但是我不太理解,这个第一行是哪一行?还有这个参数对于邮件的具体影响在哪里?

    2.continuation_ws 参数默认是空格,这个参数是拆分上面所说的第一行的时候用到的吗,具体是什么作用?

    有点罗嗦,在网上实在找不到答案了,希望懂这个 email 模块的大神给点指教。万分感谢!!

    1 replies    2018-01-24 11:48:10 +08:00
    Ctry
        1
    Ctry  
    OP
       Jan 24, 2018 via iPhone
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