请问 view 里面的字体如何上下左右居中
< view class = "section" > < view class = "section__title" >flex-direction: row</ view > < view class = "flex-wrp" style = "flex-direction:row;" > < view class = "flex-item bc_green" >1</ view > < view class = "flex-item bc_red" >2</ view > < view class = "flex-item bc_blue" >3</ view > </ view > </ view > < view class = "section" > < view class = "section__title" >flex-direction: column</ view > < view class = "flex-wrp" style = "height: 300px;flex-direction:column;" > < view class = "flex-item bc_green" >1</ view > < view class = "flex-item bc_red" >2</ view > < view class = "flex-item bc_blue" >3</ view > </ view > </ view > |