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编译原理课程设计之pp2语法分析程序

   Program: 
  1   FnDecl: 
         (return type) Type: void
  1      Identifier: main
         (body) StmtBlock: 
  2         VarDecl: 
               Type: int
  2            Identifier: a
  3         VarDecl: 
               Type: bool
  3            Identifier: done
  5         ExprStmt: 
  5            AssignExpr: 
  5               FieldAccess: 
  5                  Identifier: a
  5               Operator: =
  5               IntConstant: 0
            WhileStmt: 
  6            (test) RelationalExpr: 
  6               FieldAccess: 
  6                  Identifier: a
  6               Operator: <
  6               IntConstant: 10
               (body) StmtBlock: 
                  PrintStmt: 
  7                  (args) FieldAccess: 
  7                     Identifier: a
  7                  (args) StringConstant: " "
  8               ExprStmt: 
  8                  AssignExpr: 
  8                     FieldAccess: 
  8                        Identifier: a
  8                     Operator: =
  8                     ArithmeticExpr: 
  8                        FieldAccess: 
  8                           Identifier: a
  8                        Operator: +
  8                        IntConstant: 1
                  IfStmt: 
  9                  (test) EqualityExpr: 
  9                     FieldAccess: 
  9                        Identifier: a
  9                     Operator: ==
  9                     IntConstant: 5
  9                  (then) BreakStmt: 
            IfStmt: 
 11            (test) EqualityExpr: 
 11               ArithmeticExpr: 
 11                  FieldAccess: 
 11                     Identifier: a
 11                  Operator: %
 11                  IntConstant: 2
 11               Operator: ==
 11               IntConstant: 0
 12            (then) ExprStmt: 
 12               AssignExpr: 
 12                  FieldAccess: 
 12                     Identifier: a
 12                  Operator: =
 12                  IntConstant: 1
 14            (else) ExprStmt: 
 14               AssignExpr: 
 14                  FieldAccess: 
 14                     Identifier: done
 14                  Operator: =
 14                  BoolConstant: true
            ForStmt: 
               (init) Empty: 
 16            (test) LogicalExpr: 
 16               RelationalExpr: 
 16                  FieldAccess: 
 16                     Identifier: a
 16                  Operator: <=
 16                  IntConstant: 10
 16               Operator: ||
 16               FieldAccess: 
 16                  Identifier: done
 16            (step) AssignExpr: 
 16               FieldAccess: 
 16                  Identifier: a
 16               Operator: =
 16               ArithmeticExpr: 
 16                  FieldAccess: 
 16                     Identifier: a
 16                  Operator: +
 16                  IntConstant: 1
               (body) StmtBlock: 
                  PrintStmt: 
 17                  (args) FieldAccess: 
 17                     Identifier: a
 17                  (args) StringConstant: " "
                  IfStmt: 
 18                  (test) EqualityExpr: 
 18                     FieldAccess: 
 18                        Identifier: a
 18                     Operator: ==
 18                     IntConstant: 10
 18                  (then) ExprStmt: 
 18                     FieldAccess: 
 18                        Identifier: a
 20         ReturnStmt: 
               Empty: