/**
 * 截取文件后缀
 */
export declare function getFileSuffix(fileName: string): string;
/**
 * 判断是否是图片或pdf
 */
export declare function isImage(fileName: string | undefined): boolean;
export declare function dataURLtoFile(dataurl: any, filename: any): File;
export declare const onCopyFn: (copyText: any) => void;