__author__ = 'srtoosnye' # -*- coding: utf-8 -*- from Expr import Expr from calculate import calculate import data import sys conn = data.link_to_mysql() cursor = conn.cursor() data.create_table(cursor) expr = raw_input('请输入表达式:') if data.is_used_data(cursor, expr): sys.exit() s = Expr(expr) s.check_value() s.opt_value() data.store_result(cursor, calculate(s.get_postfix()), expr) conn.commit() conn.close()