class MySqlOdbc:
    def __init__(self):
        self.islink_success = False     # 是否链接成功
        self.sqlhead = None     # 当前数据链接句柄
        self.mycursor = None    # 当前游标

    """
    
    链接云端远程数据库 ,isautocommit：自动提交, PORT:端口一般随意，除非有限制
    
    """
    #p_strinfo = 'DRIVER={SQL Server};SERVER=222.222.166.222;PORT=1433;DATABASE=sqldbname;UID=username;PWD=123456'
    def linksql(self,p_strinfo, isautocommit=True, isansi=False, ntimeout=0):
        try:
            import pyodbc

            self.islink_success = False
            self.sqlhead = pyodbc.connect(p_strinfo, autocommit=isautocommit, ansi=isansi, timeout=ntimeout)
            self.islink_success = True
            self.mycursor = self.sqlhead.cursor()
        except Exception as errinfo:
            print(errinfo)
        return  self.islink_success

    """

    查询远程数据库
    sqlcmd = "select * from tables where id = '123'"
    """

    def query(self, sqlcmd):
        self.mycursor.execute(sqlcmd)
        rows = self.mycursor.fetchall()     # 取得所有结果
        for irow in rows:                   # 取得1行结果
            for ir in irow:                 # 取得1行结果tuple
                print(ir)