[英]Shared array multiprocessing Python
I am running a multi-process code in Python with a shared array.我正在使用共享数组在 Python 中运行多进程代码。 The problem is that I can't initialise that array...
问题是我无法初始化该数组...
To share an array in a multi-process program I have read I need to use multiprocessing.Array, but when I try it as in the code below it is not printing anything + I don't have error messages.要在我读过的多进程程序中共享一个数组,我需要使用 multiprocessing.Array,但是当我按照下面的代码尝试它时,它没有打印任何内容+我没有错误消息。
import multiprocessing
...
...
if __name__ == "__main__":
an_array= multiprocessing.Array("i", [1,2])
print(an_array) # why does it not print anything? I was expecting to print [1,2]
p1 = multiprocessing.Process(target=function1, args = [an_array, 3]
To print elements inside the Array
do the following:要打印
Array
中的元素,请执行以下操作:
import multiprocessing
if __name__ == '__main__':
an_array = multiprocessing.Array("i", [1, 2])
# first choice to print element in Array:
for element in an_array:
print(element)
# second choice to print elements in Array:
print(an_array[:])
# third choice to print elements in Array:
print(list(an_array[:]))
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