it,s been raining the whole time i've been here!

it,s been raining the whole time i've been here!
it,s been raining the whole time i've been here!

it,s been raining the whole time i've been here!
it's是it has的缩写,用了现在完成进行时,意思是我来到这儿全部时间天一直在下雨（现在还没停）