Python 自定义队列 数据结构

class myQueue:  #构造函数，默认队列大小10
    def __init__(self,size=10):
        self._content=[]
        self._size=size
        self._current=0

    def setSize(self,size):   
        if size<self._current:     #如果缩小队列，应删除后面的元素
            for i in range(size,self._current)[::-1]:
                del self._content[i]
            self._current=size
        self._size=size

    def put(self,v):         #入队
        if self._current<self._size:
            self._content.append(v)
            self._current=self._current+1
        else:
            print('The queue is full')

    def get(self):           #出队
        if self._content:
            self._current=self._current-1
            return self._content.pop(0)
        else:
            print('The queue is empty')

    def show(self):          #显示所有元素
        if self._content:
            print(self._content)
        else:
            print('The queue is empty')

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

    def isEmpty(self):        #判断是否已满
        if not self._content:
            return True
        else:
            return False

    def isFull(self):         #判断是否为空
        if self._current==self._size:
            return True
        else:
            return False
        
if __name__=='__main__':
    print('Please use me as a module.')