1)Primitive data types 。Character character, char ) Integer (integer,int, short, long, byte with a variety of precisions: Floating-point number float, double, real,double precision ) Fixed-point number (fixed with a variety of precisions and a programmer-selected scale. Boolean,logical values true and false. Reference (also called a pointer or handle),a small value referring to another object's address in memory,possibly a much larger one. More sophisticated types which can be built-in include: 。Tuple in MI,Python 。List in Lisp Complex number in Fortran,C (C99),Lisp,Python,Perl 6,D Rational number in Lisp,Perl 6 Associative array in various guises,in Lisp,Perl,Python,Lua,D First-class function,closure,continuation in languages that support functional programming such as Lisp,ML,Perl 6,D and C#3.0 ATA 12 Copyright C 2019 by Xiaoyu Li.Copyright © 2019 by Xiaoyu Li. 12 1）Primitive data types