React Native在样式中使用变量

const styles = {
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  text: {
    fontSize: 16,
    color: '#333',
  },
};

import React from 'react';
import { View, Text } from 'react-native';

const App = () => {
  return (
    <View style={styles.container}>
      <Text style={styles.text}>Hello, World!</Text>
    </View>
  );
};

export default App;

const styles = {
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: Platform.OS === 'ios' ? 'white' : 'lightgray',
  },
};