建立post数据实体，数据字段会自动更新修改数据库的字段设置

src/modules/post/post.entity.ts

@@ -0,0 +1,19 @@
+import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn} from 'typeorm';
+
+@Entity()
+export class Post {
+    @PrimaryGeneratedColumn()
+    id: number;
+
+    @Column()
+    title: string;
+
+    @Column('longtext')
+    body: string;
+
+    @CreateDateColumn()
+    created: Date;
+
+    @UpdateDateColumn()
+    updated: Date;
+}