我有一个具有属性列表的类。类中有一些函数可以写入但从未从该列表中读取。我用一个列表初始化类并从多个线程调用函数,但是在等待所有线程完成后,列表仍然为空。
列表中的值顺序无关紧要。
from multiprocessing import Process
class TestClass():
def __init__(self, vals):
self.vals = vals
def linearrun(self):
Is = range(2000)
Js = range(2000)
for i in Is:
for j in Js:
self.vals.append(i+j)
if __name__ == "__main__":
vals = []
instantiated_class = TestClass(vals)
processes = []
for _ in range(10):
new_process=Process(target=instantiated_class.linearrun)
processes.append(new_process)
new_process.start()
for p in processes:
p.join()
print(vals)