Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....文件,检查其是否包含多个联系人,如果是,则将文件中的联系人加载到 VCardContact 对象列表中。代码使用了以下方法: isMult...FileInputStream ( "test.vcf" )) { if ( VCardContact . isMultiContacts ( stream...