输入学生成绩，输出判断学生成绩是及格或不及格，良好还是优秀(Input the student achievement, the output judge the student achievement is pass or fail, good or excellent.)

Record some tips about python language The Zen of Python, by Tim Peters Beautiful is better than ugly. Explicit is better than implicit. Simple is better than complex. Complex is better than complicated. Flat is better than nested. Sparse is better t

点卡API支付接口支持各大游戏类一卡通接口,支持多卡同时提交；点卡api接口密钥,POST传值加密措施更严谨.(The point card API payment interface supports all major game class card interfaces, supports multi card simultaneous delivery, points card API interface key, POST pass value encryption measures