DDL语句 删除表 DROP TABLE IF EXISTS 't_student'; 创建表 CREATE TABLE IF NOT EXISTS 't_student' ( 'id' INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, 'name' TEXT, 'age' INTEGER ); DML语句 插入语句 INSERT INTO t_student (name, age) VALUES ('why', 18); INSERT INTO t_student (name, age) VALUES