Should someone get into trouble,please call me.这里的should什么意思?

Should someone get into trouble,please call me.这里的should什么意思?
Should someone get into trouble,please call me.这里的should什么意思?

Should someone get into trouble,please call me.这里的should什么意思?
Should放在句首表虚拟语气.如果的意思.原句与If someone should get .是一样的

如果有人有麻烦,给我打电话

如果