二、渲染数据

constructor(props) {
    super(props)
    this.state = {
      lists: []
    }
  }

render() {
    const ListItem = this.state.lists.map(item => {
      return (
        <View className="content" key={item._id}>
          <View className="title">{item.title}</View>
          <image src={item.pic} className="img" />
        </View>
      )
    })
    return (
      <View className="container">
        {ListItem}
      </View>
    )
  }