1.a line of people or vehicles waiting for something
2.(information processing) an ordered list of tasks to be performed or messages to be transmitted
3.a braid of hair at the back of the head
1.form a queue, form a line, stand in line;
Customers lined up in front of the store
队列是一种特殊的线性表,它只允许在表的前端(front)进行删除操作,而在表的后端(rear)进行插入操作。进行插入操作的端称为队尾,进行删除操作的端称为队头。队列中没有元素时,称为空队列。