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bakabie
V2EX  ›  Python

请问下, Python 如何做到结构体内嵌结构体呢?

  •  
  •   bakabie ·
    9bie · 2017-07-12 17:01:26 +08:00 · 2646 次点击
    这是一个创建于 2474 天前的主题,其中的信息可能已经有所发展或是发生改变。

    C 代码类似

    struct IMAGE_NT_HEADERS {
        IMAGE_OPTIONAL_HEADER IMAGE_OPTIONAL_HEADER {
        }
    }
    struct IMAGE_OPTIONAL_HEADER{....}
    

    _(:з)∠)_。。。Python 如何做到呢?用 ctypes 没想出来怎么做

    dbow
        1
    dbow  
       2017-07-12 17:24:30 +08:00   ❤️ 1
    https://docs.python.org/2/library/ctypes.html#structures-and-unions

    You can, however, build much more complicated structures. A structure can itself contain other structures by using a structure as a field type.

    Here is a RECT structure which contains two POINTs named upperleft and lowerright:

    >>>
    >>> class RECT(Structure):
    ... _fields_ = [("upperleft", POINT),
    ... ("lowerright", POINT)]
    ...
    >>> rc = RECT(point)
    >>> print rc.upperleft.x, rc.upperleft.y
    0 5
    >>> print rc.lowerright.x, rc.lowerright.y
    0 0
    >>>
    Nested structures can also be initialized in the constructor in several ways:

    >>>
    >>> r = RECT(POINT(1, 2), POINT(3, 4))
    >>> r = RECT((1, 2), (3, 4))
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