dropUnique('users_email_unique'); $table->dropColumn(['email', 'email_verified_at']); // 新增 username 和 nickname 字段 $table->string('username')->unique()->after('id'); $table->string('nickname')->nullable()->after('username'); }); } /** * Reverse the migrations. */ public function down(): void { Schema::table('users', function (Blueprint $table) { // }); } };