stack就是数据结构的堆栈技术,遵循后进先出的原理。...import React,{Component} from 'react';
import {Image} from 'react-native';
export default class TabBarItem..., { Component } from 'react';
import {
Platform,
StyleSheet,
Text,
View
} from 'react-native..., { Component } from 'react';
import {
Platform,
StyleSheet,
Text,
View
} from 'react-native...Text,
View,
Image,
Button
} from 'react-native';
export default class MineScreen extends