new CooldownItem(key) 公共冷却项目 Source: actor.js, line 3691 Parameters: Name Type Description key string 冷却键 Members cooldown :number 当前冷却时间 Source: actor.js, line 3681 Type: number duration :number 持续冷却时间 Source: actor.js, line 3685 Type: number key :string 冷却键 Source: actor.js, line 3677 Type: string progress 读取公共冷却进度 Source: actor.js, line 3698