下面我们来看看简单的使用
1.1数据表
1 CREATE TABLE `user` ( 2 `id` int(5) NOT NULL AUTO_INCREMENT, 3 `username` varchar(15) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci DEFAULT NULL, 4 `password` varchar(999) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci DEFAULT NULL, 5 PRIMARY KEY (`id`) 6 ) ENGINE=InnoDB AUTO_INCREMENT=68 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;