111

import time

class MyQueue:
def init(self,size=10):
self._content=[]
self._size=size
self._current=0
def setSize(self,size):
if size<size._current:
for i in range(size,self._current)[::-1]:
del self._content[i]
self._current=size
self._size=size

def put(self,v,timeout=5):
    for i in range (timeout):
        if self._current<self._size:
            self._content.append(v)
            self._current=self._current+1
            break
        time.sleep(1)
    else:
        print("队列已满，超时放弃")

def get(self,timeout=5):
    for i in range (timeout):
        if self._content:
            self._content=self._current-1
            return self._content.pop(0)

            time.sleep(1)
        else :
            print("队列为空，超时放弃")
            return None

def show(self):
    if self._content:
        print(self._content)
    else:
        print("队列为空")

def empty(self):
    self._content=[]
    self._current=0

def isEmpty(self):
    return not self._content

def isFull(self):
    return self._current==self._size

queue=MyQueue(5)
queue.put("a")
queue.put("c")
queue.put("d")
queue.put("e")
queue.put("f")
queue.put("g")
print(queue.get())
print(queue.get())
print(queue.get())
print(queue.get())
print(queue.get())
queue.get()