#!/usr/bin/python
import time
from array import *
THINKING = 0
HUNGRY = 1
EATING = 2
class Philosopher:
def __init__(self):
self.ph = array('i',[1, 2, 3, 4, 5])
self.sleeptime = array('i',[30, 30, 30, 30, 30])
def initialization_code(self):
for i in range(self.ph.__len__()):
self.ph[i] = THINKING
def pickup(self,i):
self.ph[i] = HUNGRY
self.test(i)
if(EATING not in (self.ph[i])):
while(EATING not in (self.ph[i])):
time.sleep(self.sleeptime[i])
def putdown(self,i):
self.ph[i] = THINKING
self.test((i+4)%5)
self.test((i+1)%5)
def test(self,i):
if((2 not in (self.ph[(i+4)%5]))and(2 not in (self.ph[(i+1)%5]))and(self.ph[i]==HUNGRY)):
self.ph[i] = EATING
def start_process(self):
for i in range(self.ph.__len__()):
self.pickup(i)
self.putdown(i)
def display_status(self):
for i in range(self.ph.__len__()):
if (self.ph[i] == 0):
print "%d is THINKING" % i+1
elif (self.ph[i] == 1):
print "%d is WAITING" % i+1
elif (self.ph[i] == 2):
print "%d is EATING" % i+1
phil = Philosopher()
phil.initialization_code()
phil.start_process()
phil.display_status()
以上是我尝试在 python 中实现哲学家就餐问题的一段代码。 当我运行这段代码时，它显示了这个错误:
Traceback (most recent call last):
File "dining.py", line 59, in <module>
phil.start_process()
File "dining.py", line 43, in start_process
self.pickup(i)
File "dining.py", line 27, in pickup
self.test(i)
File "dining.py", line 38, in test
if((2 not in (self.ph[(i+4)%5]))and(2 not in (self.ph[(i+1)%5]))and(self.ph[i]==HUNGRY)):
TypeError: argument of type 'int' is not iterable
谁能帮我解决这个问题，为什么会显示这个错误。我搜索了它但无法解决。 提前致谢!!
最佳答案
您的等式得出整数。您不能对整数使用 in。
>>> 'foo' in 3
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: argument of type 'int' is not iterable
关于python - 类型错误 : argument of type 'int' is not iterable，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11184769/