/** * 是否为mac系统（包含iphone手机） * */
export declare function isMac(): boolean;
export declare function isSingleKey(event: KeyboardEvent): boolean;
export declare function isShiftOnly(event: KeyboardEvent): boolean;
export declare function isCtrlOnly(event: KeyboardEvent): boolean;
export declare function isCut(event: KeyboardEvent): boolean;
export declare function isCopy(event: KeyboardEvent): boolean;
export declare function isPaste(event: KeyboardEvent): boolean;
export declare function isDelete(event: KeyboardEvent): boolean;