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charlie
2022-04-07 09:15:12 +08:00
parent 44aae0c3b0
commit 8736d84913
5 changed files with 26 additions and 26 deletions
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14
collections/stack.go
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@ -3,9 +3,9 @@ package collections
import "sync"
type ArrayStack struct {
array []interface{} // 底层切片
size int // 栈的元素数量
lock sync.Mutex // 为了并发安全使用的锁
array []any // 底层切片
size int // 栈的元素数量
lock sync.Mutex // 为了并发安全使用的锁
}
func NewArrayStack[T any]() *ArrayStack {
@ -13,7 +13,7 @@ func NewArrayStack[T any]() *ArrayStack {
}
// 入栈
func (stack *ArrayStack) Push(v interface{}) {
func (stack *ArrayStack) Push(v any) {
stack.lock.Lock()
defer stack.lock.Unlock()
@ -24,7 +24,7 @@ func (stack *ArrayStack) Push(v interface{}) {
stack.size = stack.size + 1
}
func (stack *ArrayStack) Pop() interface{} {
func (stack *ArrayStack) Pop() any {
stack.lock.Lock()
defer stack.lock.Unlock()
@ -39,7 +39,7 @@ func (stack *ArrayStack) Pop() interface{} {
//stack.array = stack.array[0 : stack.size-1]
// 创建新的数组，空间占用不会越来越大，但可能移动元素次数过多
newArray := make([]interface{}, stack.size-1, stack.size-1)
newArray := make([]any, stack.size-1, stack.size-1)
for i := 0; i < stack.size-1; i++ {
newArray[i] = stack.array[i]
}
@ -51,7 +51,7 @@ func (stack *ArrayStack) Pop() interface{} {
}
// 获取栈顶元素
func (stack *ArrayStack) Peek() interface{} {
func (stack *ArrayStack) Peek() any {
// 栈中元素已空
if stack.size == 0 {
panic("empty")