HarmonyOS 主线程刷新UI

/**  
 * post请求  
 * @param sid  接口sid  
 * @param postData  接口请求参数  
 * @param callBack  回调  
 * @param isEncrypt Data是否加密 默认false  
 */  
public async  post<T>(sid:string,postData:string,callBack?: ResponseCallBack<T>,isEncrypt: boolean=false) {  
}
1.
2.
3.
4.
5.
6.
7.
8.
9.

HttpUtil.post<string>(SID_SEND_VERIFICATION_CODE, JSON.stringify(postData), {  
  success(result, response): void {  
    this.senCode()//按钮显示倒计时    
    Logger.info('rsaEncrypt success', ` result.reCode=${result.reCode} response= ${response}`);  
  },
1.
2.
3.
4.
5.