编译原理实验tiny+

1.RealizationofSyntaxtree.2.BuildSymbolTable.3.Generationofcode.1.SyntaxoftheTINYLanguage:AContext-FreeGrammarforTINYdeclarations->decl;declarations|εdecl->type-specifiervarlisttype-specifier->int|bool|charvarlist->identifier{,identifier}while-stmt->while