uuid类型中划线问题

database/seeds/DatabaseSeeder.php

@@ -18,7 +18,7 @@ class DatabaseSeeder extends Seeder
         if(!Schema::hasTable($tableName)){
             Schema::create($tableName, function (Blueprint $table){
                 $table->increments('id');
-                $table->uuid('strategy_sn')->comment('sn编号'); //sn编号
+                $table->string('strategy_sn',100)->comment('sn编号'); //sn编号
                 $table->string('strategy_name',50)->comment('策略名称');  
                 $table->string('user_sn',100)->comment('用户sn');  
                 $table->string('user_name',50)->comment('用户名');  
@@ -65,7 +65,7 @@ class DatabaseSeeder extends Seeder
         if(!Schema::hasTable($tableName)){
             Schema::create($tableName, function (Blueprint $table){
                 $table->increments('id');
-                $table->uuid('strategy_sn')->comment('策略sn编号'); //sn编号
+                $table->string('strategy_sn',100)->comment('策略sn编号'); //sn编号
                 $table->string('name',50)->nullable()->comment('姓名'); 
                 $table->date('duty_date')->nullable()->comment('值班日期（年月日）');  
                 $table->timestamp('import_date')->nullable()->comment('导入日期（年-月-日 时:分:秒）');