问Axios无法附加上一个post请求中的cookie

EN

// A Promise will be returned for POST uDIDUrl (never assigned anywhere) and execution will continue
api.post(uDIDUrl, null,{
    withCredentials:true
}).then(res =>{
    console.log(api);
    console.log(res.data);
}).catch(err =>{
    console.log(err);
});

// The execution will block until the returned Promise of the `POST qrCodeUrl` request is fulfilled
await api.post(qrCodeUrl, null,{
    withCredentials:true
}).catch((error: any) =>{
    console.log(error);
});

import * as vscode from "vscode";
import * as fs from "fs";
import * as path from "path";
import * as os from 'os';
import axios from 'axios';
import * as FormData from 'form-data';

/**
 * Prefetch QRCode https://www.zhihu.com/api/v3/account/api/login/qrcode
 * Get QRCode https://www.zhihu.com/api/v3/account/api/login/qrcode/${token}/image
 * Query ScanInfo https://www.zhihu.com/api/v3/account/api/login/qrcode/${token}/scan_info
 */
const qrCodeUrl = "https://www.zhihu.com/api/v3/account/api/login/qrcode";
const uDIDUrl = 'https://www.zhihu.com/udid';

export class ZhihuService {

  public async login() {
    vscode.window.showInformationMessage("知乎登陆");
    await this.qrcodeLogin();
  }

  protected async qrcodeLogin() {
    var api = axios.create({
      withCredentials: true
    });
    
    //pre-hand before get qrcode token
    await api.post(uDIDUrl).then(res => {      // Added await here & removed extra parameters
      console.log(api);
      console.log(res.data);
    }).catch(err => {
      console.log(err);
    });
    await api.post(qrCodeUrl).catch((error: any) => {
      console.log(error);
    });
  }
}