2、发展历史及语言谱系 Algol 1960 LISP Pascal Simula Modula 1970 Smalltalk Flavors 1980 Ada LOOPS)( Eiffel Ob ject C++ Objective-C Pascal Actor 1990 CLOS ava Visual C++ Delphi 77 2、发展历史及语言谱系 Algol Simula Smalltalk LISP Flavors LOOPS CLOS Eiffel Actor C++ C Objective-C Pascal Ada Modula- 2 Java 1960 1970 1980 1990 Object Pascal Visual C++ Delphi