Sams teach yourself Perl in 24 hours Sans Teach Yourself Perl in 24 Hours Sams teach yourself C++ in 24 hours Sams teach yourself R in 24 hours Sams teach yourself SAP in 24 hours Sams teach yourself SQL in 24 hours Sams teach yourself UML in 24 hours Sams teach yourself Linux in 24 hours Sams teach yourself Swift in 24 hours 并列题名：Sams teach yourself Perl in 24 hours