示例#1
0
 @Override
 public Void visitPostfixExpression(PostfixExpression node) {
   visit(node.getOperand());
   writer.print(node.getOperator().getLexeme());
   return null;
 }
 @Override
 public R visitPostfixExpression(PostfixExpression node) {
   node.visitChildren(this);
   return null;
 }