.value.splice(top.value + 1, 1);

                isBusy.value = false;
            };

            const peek = async () => {
                if(isEmpty.value || isBusy.value) return;
                isBusy.value = true;
                clearHighlights();

                const topItem = stack.value[top.value];
                notyf.success(`查找到栈顶元素: '${topItem.value}'`);
                
                // 临时高亮栈顶
                const originalTop = top.value;
     