python3.6用cx_Oracle库链接Oracle

1.Python代码 import cx_Oracle tns=cx_Oracle.makedsn('127.0.0.1','1521','mytest') db=cx_Oracle.connect('system','123456',tns) print('成功链接上oracle数据库') db.close(); 2.报错信息及解决 错误1：cx_Oracle.DatabaseError: D

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