山回路转不见君  雪上空留马行处

直接上代码

import "fmt"

type DanNode struct {
	Data int
	Next *DanNode
}

type DanList struct {
	First *DanNode
	Last  *DanNode
	Size  int
}

// 创建一个空的单链表
func CreateNewDanAirList() (list *DanList) {
	return &DanList{}
}

// 给链表末尾新增一个节点
func (list *DanList) AddOneNodeToDan(value int) {
	newNode := new(DanNode)
	newNode.Data = value

	// 链表为空时
	if list.Size < 1 {
		list.First = newNode
		list.Last = newNode
	} else {
		// 链表的长度>=1时
		lastNode := list.Last
		lastNode.Next = newNode
		newNode.Next = nil
		list.Last = newNode
	}

	list.Size += 1
}

// 删除链表末尾节点
func (list *DanList) RemoveOneNode() {

	// 链表为空时
	if list.Size < 1 {
		return
	}
		// 链表的长度>=1时
		lastCount := list.Size
		last2Count := list.Size-1
		if lastCount == 1{
			list.First = nil
			list.Last = nil
			return
		}
		var last2Node *DanNode
		currentNode := list.First
		if lastCount >=2 {
			for i:=1;i<=lastCount;i++{
				if i>=2{
					currentNode = currentNode.Next
					if i== last2Count{
						last2Node = currentNode
					}
				}
			}
		}

		last2Node.Next = nil
		list.Last = last2Node
		list.Size -= 1
}

// 删除链表首节点
func (list *DanList) RemoveOneNodeFront() {
	if list.Size <1 {
		return
	}
	firstNode := list.First
	list.First = firstNode.Next
	list.Size -=1
}

// 给链表开头新增一个节点
func (list *DanList) AddOneNodeToDan2Front(value int) {
	newNode := new(DanNode)
	newNode.Data = value

	// 链表为空时
	if list.Size < 1 {
		list.First = newNode
		list.Last = newNode
	} else {
		// 链表的长度>=1时
		firstNode := list.First
		newNode.Next = firstNode
		list.First = newNode
	}

	list.Size += 1
}

// 打印链表值
func (list *DanList) PrintDan() {
	currentNode := list.First
	fmt.Print(currentNode.Data, "\t")
	for i := 0; i < list.Size; i++ {
		if currentNode.Next == nil {
			return
		}
		currentNode = currentNode.Next
		fmt.Print(currentNode.Data, "\t")
	}
}

func main() {
	list := CreateNewDanAirList()
	fmt.Println("从末尾新增元素：")
	list.AddOneNodeToDan(17)
	list.AddOneNodeToDan(18)
	list.AddOneNodeToDan(19)
	list.PrintDan()			// 17   18	19
	list.AddOneNodeToDan2Front(16)	// 给开头新增元素，值为16
	fmt.Println("\n给开头新增一个元素作为首节点：")
	list.PrintDan()		// 16  17	18	19
	list.RemoveOneNode()	// 删除尾节点
	fmt.Println("\n删除尾节点")
	list.PrintDan()		// 16  17	18
	fmt.Println("\n删除首节点：")
	list.RemoveOneNodeFront()
	list.PrintDan()		// 17	18
}

打印：

从末尾新增元素：
17	18	19	
给开头新增一个元素作为首节点：
16	17	18	19	
删除尾节点
16	17	18	
删除首节点：
17	18