golang数据结构和算法之StackLinkedList链表堆栈

会了上一个，这个就差不离了。

StackLinkedList.go

package StackLinkedList

type Node struct {
	data int
	next *Node
}

type Stack struct {
	top *Node
}

func (list *Stack) Push(i int) {
	data := &Node{data: i}
	if list.top != nil {
		data.next = list.top
	}
	list.top = data
}

func (list *Stack) Pop() (int, bool) {
	if list.top == nil {
		return 0, false
	}

	i := list.top.data
	list.top = list.top.next
	return i, true
}

func (list *Stack) Peek() (int, bool) {
	if list.top == nil {
		return 0, false
	}
	return list.top.data, true
}

func (list *Stack) Get() [] int {
	var items[]int
	current := list.top
	for current != nil {
		items = append(items, current.data)
		current = current.next
	}
	return items
}

func (list *Stack) IsEmpty() bool {
	return list.top == nil
}

func (list *Stack) Empty() {
	list.top = nil
}

　　

StackLinkedList_test.go

package StackLinkedList

import (
	"fmt"
	"math/rand"
	"testing"
	"time"
)

func TestStackLinkedList(t *testing.T) {
	random := rand.New(rand.NewSource(time.Now().UnixNano()))
	headNode := &Node{
		data: random.Intn(100),
		next: nil,
	}
	stackLinkedList := &Stack{
		top: headNode,
	}
	fmt.Println(stackLinkedList.Get())

	randNumber := random.Intn(100)
	stackLinkedList.Push(randNumber)
	stackLinkedList.Push(random.Intn(100))
	stackLinkedList.Push(random.Intn(100))
	stackLinkedList.Push(random.Intn(100))
	fmt.Println(stackLinkedList.Get())
	retResult, retBool := stackLinkedList.Pop()
	if retBool == true {
		fmt.Println(retResult)
	}
	stackLinkedList.Empty()

	if stackLinkedList.IsEmpty() == false {
		t.Fail()
	}

}

　　

输出：

D:/Go/bin/go.exe test -v [D:/go-project/src/StackLinkedList]
=== RUN   TestStackLinkedList
[84]
[34 74 26 11 84]
34
--- PASS: TestStackLinkedList (0.00s)
PASS
ok  	StackLinkedList	2.680s
成功: 进程退出代码 0.