排队模型系统仿真python。不使用仿真库
时间: 2023-10-08 17:12:13 浏览: 63
好的,我理解你的问题是如何使用Python进行排队模型的系统仿真,而不使用任何仿真库。以下是一个简单的排队模型系统仿真的Python代码示例,供你参考:
```python
import random
class Queue:
def __init__(self):
self.items = []
def is_empty(self):
return not bool(self.items)
def enqueue(self, item):
self.items.insert(0, item)
def dequeue(self):
return self.items.pop()
def size(self):
return len(self.items)
class Customer:
def __init__(self, arrival_time):
self.arrival_time = arrival_time
self.service_time = random.expovariate(1.0/3)
class Server:
def __init__(self):
self.current_customer = None
self.time_remaining = 0
def is_busy(self):
return bool(self.current_customer)
def start_service(self, customer):
self.current_customer = customer
self.time_remaining = customer.service_time
def stop_service(self):
customer = self.current_customer
self.current_customer = None
self.time_remaining = 0
return customer
class Simulation:
def __init__(self, num_customers, arrival_rate):
self.server = Server()
self.queue = Queue()
self.num_customers = num_customers
self.arrival_rate = arrival_rate
self.time = 0
self.customers_served = 0
self.wait_time = 0
def run(self):
for i in range(self.num_customers):
if random.random() < self.arrival_rate:
customer = Customer(self.time)
self.queue.enqueue(customer)
if not self.server.is_busy() and not self.queue.is_empty():
next_customer = self.queue.dequeue()
self.wait_time += self.time - next_customer.arrival_time
self.server.start_service(next_customer)
self.customers_served += 1
if self.server.is_busy():
self.server.time_remaining -= 1
if self.server.time_remaining == 0:
self.server.stop_service()
self.time += 1
return self.customers_served, self.wait_time/self.customers_served
# Run a simulation with 100 customers and an arrival rate of 0.5
sim = Simulation(100, 0.5)
customers_served, avg_wait_time = sim.run()
print("Customers served:", customers_served)
print("Average wait time:", avg_wait_time)
```
这个例子中,我们使用了一个队列来存放到达的顾客,一个服务器来服务顾客,并且跟踪顾客的到达时间和服务时间。在仿真过程中,我们模拟了顾客的到达和离开,以及服务器的忙碌时间和服务时间。最后,我们输出了服务的顾客数量和平均等待时间。
希望这个例子能够帮助你理解如何使用Python进行排队模型的系统仿真。
相关推荐
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)