@click="onClick"
@mouseup="onClick"
ref="xDragItem"
class="xDragItem"
:style="{
height:_height,
width:_width,
top:_defaultTop+'px',
left:_defaultLeft+'px',
zIndex:nowId==id&&nowId!=''?'5':'1',
transitionDuration:nowId!=id&&nowId!=''?'0.4s':'0s',
}">