Tracing simple programs in Prolog, C++ and SQL
追蹤簡易的 Prolog、C++ 及 SQL 程序

Since only the skills of tracing simple programs are to be learnt, the descriptions of the syntax of the above programming languages will be brief in these web pages. Students and teachers may refer to respective reference books for detailed descriptions of these languages.

由於學生只需學習如何追蹤簡易程序，這些網頁只簡述以上各種程序語言的語法。教師們及學生們如要知道這些程序語言的詳細資料，可以參閱有關的參考書。