HarmonyOS如何获取当前的网络连接状态是WIFI还是数据流量？

import connection from '@kit.NetworkKit'; 
import { hilog } from '@kit.PerformanceAnalysisKit'; 
 
export async function obConnectType(){ 
  let defaultNet = await connection.getDefaultNet(); 
  let data = await connection.getNetCapabilities(defaultNet); 
  hilog.info(0x0000,'连接属性','默认连接属性为%{public}s',JSON.stringify(data)) 
  let type = data.bearerTypes[0] 
  return type.toString(); 
} 
 
export async function isWIFI(): Promise<boolean> { 
  let defaultNet = await connection.getDefaultNet(); 
  let data = await connection.getNetCapabilities(defaultNet); 
  hilog.info(0x0000, '连接属性', '默认连接属性为%{public}s', JSON.stringify(data)) 
  let type = data.bearerTypes[0] 
  return connection.NetBearType.BEARER_WIFI == type; 
}