时间戳加默认当前时间

database/migrations/2021_12_28_223702_create_book_titles_table.php

@@ -18,8 +18,8 @@ class CreateBookTitlesTable extends Migration
 			$table->integer('book');
             $table->integer('paragraph')->index();
             $table->string('title',1024);
-            $table->timestamps();
-
+            $table->timestamp('created_at')->useCurrent();
+			$table->timestamp('updated_at')->useCurrent()->useCurrentOnUpdate();
             $table->index(["book", "paragraph"]);
 
         });