链表遍历

package main
import (
    "container/list"
    "fmt"
    "github.com/gogf/gf/v2/container/garray"
    "github.com/gogf/gf/v2/container/glist"
)
func main() {
    // concurrent-safe list.
    l := glist.NewFrom(garray.NewArrayRange(1, 9, 1).Slice(), true)
    fmt.Println(l)
    // iterate reading from head.
    l.RLockFunc(func(list *list.List) {
        length := list.Len()
        if length > 0 {
            for i, e := 0, list.Front(); i < length; i, e = i+1, e.Next() {
                fmt.Print(e.Value)
            }
        }
    })
    fmt.Println()
    // iterate reading from tail.
    l.RLockFunc(func(list *list.List) {
        length := list.Len()
        if length > 0 {
            for i, e := 0, list.Back(); i < length; i, e = i+1, e.Prev() {
                fmt.Print(e.Value)
            }
        }
    })
    fmt.Println()
    // iterate reading from head using IteratorAsc.
    l.IteratorAsc(func(e *glist.Element) bool {
        fmt.Print(e.Value)
        return true
    })
    fmt.Println()
    // iterate reading from tail using IteratorDesc.
    l.IteratorDesc(func(e *glist.Element) bool {
        fmt.Print(e.Value)
        return true
    })
    fmt.Println()
    // iterate writing from head.
    l.LockFunc(func(list *list.List) {
        length := list.Len()
        if length > 0 {
            for i, e := 0, list.Front(); i < length; i, e = i+1, e.Next() {
                if e.Value == 6 {
                    e.Value = "M"
                    break
                }
            }
        }
    })
    fmt.Println(l)      
    // [1,2,3,4,5,6,7,8,9]
    // 987654321
    // 123456789
    // 987654321
    // [1,2,3,4,5,M,7,8,9]

package main
import (
    "fmt"
    "github.com/gogf/gf/v2/container/glist"
    "github.com/gogf/gf/v2/frame/g"
)
func main() {
    l := glist.NewFrom(g.Slice{1, 2, 3, 4, 5})
    l.PushBack(6)
    fmt.Println(l)
    l.PushFront(0)
    fmt.Println(l)
    // 正数从右边入栈
    l.PushBacks(g.Slice{7, 8})
    fmt.Println(l)
    // 负数从左边入栈
    l.PushFronts(g.Slice{-1, -2}) 
    fmt.Println(l)
    l.PushFrontList(glist.NewFrom(g.Slice{"a", "b", "c"}))
    l.PushBackList(glist.NewFrom(g.Slice{"d", "e", "f"}))
    fmt.Println(l)
    // Output:
    // [1,2,3,4,5,6]
    // [0,1,2,3,4,5,6]
    // [0,1,2,3,4,5,6,7,8]
    // [-2,-1,0,1,2,3,4,5,6,7,8]
    // ["a","b","c",-2,-1,0,1,2,3,4,5,6,7,8,"d","e","f"]
}

Pop*元素项出栈

package main
import (
    "fmt"
    "github.com/gogf/gf/v2/container/glist"
    "github.com/gogf/gf/v2/frame/g"
)
func main() {
    l := glist.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
    l.MoveToBack(l.Front()) //将第一个元素(1)移动最右边  [2,3,4,5,6,7,8,9,1] 
    l.MoveToFront(l.Back().Prev()) //将最后一项的前一个元素(9)移动最左边  [9,2,3,4,5,6,7,8,1]
    fmt.Println(l)
    // 将2到栈首元素的前面
    l.MoveBefore(l.Front().Next(), l.Front())
    // 将8到栈尾元素的后面
    l.MoveAfter(l.Back().Prev(), l.Back())
    fmt.Println(l)
    // 在栈尾元素前插入新元素
    l.InsertBefore(l.Back(), "a")
    // 在栈首元素后插入新元素
    l.InsertAfter(l.Front(), "b")
    // Output:
    // [2,"b",9,3,4,5,6,7,1,"a",8]
}

Join元素项串连

package main
import (
    "fmt"
    "github.com/gogf/gf/v2/container/glist"
    "github.com/gogf/gf/v2/frame/g"
)
func main() {
    var l glist.List
    l.PushBacks(g.Slice{"a", "b", "c", "d"})
    fmt.Println(l.Join(","))
    // Output:
    // a,b,c,d
}

JSON序列化/反序列

• package main
  import (
      "encoding/json"
      "fmt"
      "github.com/gogf/gf/v2/container/glist"
      "github.com/gogf/gf/v2/frame/g"
  )
  func main() {
      type Student struct {
          Id     int
          Name   string
          Scores *glist.List
      }
      s := Student{
          Id:     1,
          Name:   "john",
          Scores: glist.NewFrom(g.Slice{100, 99, 98}),
      }
      b, _ := json.Marshal(s)
      fmt.Println(string(b))
      // Output:
      // {"Id":1,"Name":"john","Scores":[100,99,98]}
  }

import (
    "encoding/json"
    "fmt"
    "github.com/gogf/gf/v2/container/glist"
)
func main() {
    b := []byte(`{"Id":1,"Name":"john","Scores":[100,99,98]}`)
    type Student struct {
        Id     int
        Name   string
        Scores *glist.List
    }
    s := Student{}
    json.Unmarshal(b, &s)
    fmt.Println(s)
    // Output:
    // {1 john [100,99,98]}
```