微信小程序flex box界面设计入门到精通-11课-Flex项目的属性-flex-basis项目占据的主轴空间

.item { flex-basis: <length> | auto; /* default auto */ }

<view class='c01'>

  <view class='fk'>01</view>

  <view class='fk c02'>02</view>

  <view class='fk'>03</view>

</view>

.c01{

  display: flex;

}

.fk{

  width: 100px;

  height: 100px;

  background-color: gainsboro;

  margin: 5px;

}

.c02{

  flex-basis: 200px;

}