[英]Edited : how to declare array of struct in Python
import struct
from collections import namedtuple
FDResult = namedtuple('FDResult', ['DeviceID', 'PageNum'])
#bla = [FDResult(DeviceID='NR0951113', PageNum=[1,2,3,4]),
#FDResult(DeviceID='NR0951114', PageNum=[17,28,63,64]),
#FDResult(DeviceID='NR0951115', PageNum=[2,3,4,5])]
bla = [FDResult(DeviceID='NR0951115', PageNum=[1])] #how to declare bla as FDResult array and blank data inside,Length of bla should equal 0
bla.append(FDResult(DeviceID='NR0951112', PageNum=[2]))
print(len(bla))
bla[0].PageNum.append(16)
how to declare array of struct in Python? 如何在Python中声明结构数组?
FDResult array and blank data inside,Length of bla should equal 0 FDResult数组和内部空白数据,bla的长度应等于0
FDResult = namedtuple('FDResult', ['DeviceID', 'PageNum'])
#bla = [FDResult(DeviceID='NR0951113', PageNum=[1,2,3,4]),
#FDResult(DeviceID='NR0951114', PageNum=[17,28,63,64]),
#FDResult(DeviceID='NR0951115', PageNum=[2,3,4,5])]
NodeList = []
Node = FDResult(DeviceID='NR0951113', PageNum=[1,2,3,4])
NodeList.append(Node)
print(len(NodeList))
NodeList[0].PageNum.append(16)
You can create namedtuple array like this. 您可以像这样创建namedtuple数组。
from collections import namedtuple
MyStruct = namedtuple('MyStruct', 'Mark nPackLen nFlag nGisIp nPort sData sEnd')
NodeList = []
Node = MyStruct(None, '', '', '', '', -1, 0)
for id in range(4):
NodeList.append(Node)
If length of bla
should be zero, just create an empty list: 如果
bla
长度应为零,则只需创建一个空列表:
bla = []
A Python list can contain objects of any type. Python列表可以包含任何类型的对象。 If
bla
is only supposed to hold FDResult
instances, it is your responsibility as programmer not to put anything else there. 如果
bla
仅应保留FDResult
实例,则作为程序员的职责是不要在其中放置任何其他内容。
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