React Native 字体粗细错误

javascript
import React from 'react';
import { View, Text, StyleSheet } from 'react-native';
const App = () => {
  return (
    
      Hello React Native!
      Hello React Native with Bold Font!
    
  );
};
const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  text: {
    fontSize: 20,
    fontFamily: 'Arial', // 自定义字体文件路径
  },
  bold: {
    fontWeight: 'bold', // 设置字体粗细为粗体
  },
});
export default App;