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队列的特点:先进先出 (FIFO / First In First Out),先进入队列的元素最先出队列,入队操作只能在队尾进行,出队操作只能在队首进行,js中我们可以使用数组来实现队列。
class Queue { items = [] // 进栈 enqueue(val){ this.items.push(val) } // 出栈 dequeue(){ this.items.shift() } // 清空队列 clear(){ this.items = [] } // 获取队首元素 get front(){ return this.items[0] } // 获取队列大小 get size(){ return this.items.length } // 判断队列是否为空 get isEmpty(){ return !this.items.length } // 打印队列 print(){ console.log(this.items.toString()) } } const queue = new Queue() console.log("====初始化====") console.log(queue.isEmpty,queue.size) console.log("==============") console.log("====入队操作====") queue.enqueue(1) queue.enqueue(2) queue.enqueue(3) queue.enqueue(4) console.log("==============") console.log("====判断是否为空====") console.log(queue.isEmpty,queue.size) queue.print() console.log("==============") console.log("====出队操作====") queue.dequeue() console.log(queue.isEmpty,queue.size) queue.print() console.log("==============") console.log("====清空队列====") queue.clear() console.log(queue.isEmpty,queue.size) console.log("==============") // ====初始化==== // true 0 // ============== // ====入队操作==== // ============== // ====判断是否为空==== // false 4 // 1,2,3,4 // ============== // ====出队操作==== // false 3 // 2,3,4 // ============== // ====清空队列==== // true 0 // ==============
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队列的特点:先进先出 (FIFO / First In First Out),先进入队列的元素最先出队列,入队操作只能在队尾进行,出队操作只能在队首进行,js中我们可以使用数组来实现队列。
The text was updated successfully, but these errors were encountered: