能不能写个vue3的关于TYPESCIPT的axios封装

可以的。下面是一个示例：

import axios, { AxiosRequestConfig, AxiosResponse } from 'axios';
import { Promise } from 'es6-promise';

interface IResponse<T = any> extends AxiosResponse {
  data: T;
}

export default class HttpClient {
  private static instance: HttpClient;

  public static getInstance(): HttpClient {
    if (!HttpClient.instance) {
      HttpClient.instance = new HttpClient();
    }
    return HttpClient.instance;
  }

  public request<T = any>(config: AxiosRequestConfig): Promise<IResponse<T>> {
    return axios.request<T>(config);
  }

  public get<T = any>(url: string, config?: AxiosRequestConfig): Promise<IResponse<T>> {
    return axios.get<T>(url, config);
  }

  public delete<T = any>(url: string, config?: AxiosRequestConfig): Promise<IResponse<T>> {
    return axios.delete(url, config);
  }

  public head<T = any>(url: string, config?: AxiosRequestConfig): Promise<IResponse<T>> {
    return axios.head(url, config);
  }

  public options<T = any>(url: string, config?: AxiosRequestConfig): Promise<IResponse<T>> {
    return axios.options(url, config);
  }

  public post<T = any>(url: string, data?: any, config?: AxiosRequestConfig): Promise<IResponse<T>> {
    return axios.post<T>(url, data, config);
  }

  public put<T = any>(url: string, data?: any, config?: AxiosRequestConfig): Promise<IResponse<T>> {
    return axios.put<T>(url, data, config);
  }

  public patch<T = any>(url: string, data?: any, config?: AxiosRequestConfig): Promise<IResponse<T>> {
    return axios.patch<T>(url, data, config);
  }
}

使用方法：

import HttpClient from './httpClient';

const http = HttpClient.getInstance();

http.get('/users').then(response => {
  console.log(response.data);
});

注意：这只是一个示例，在实际使用中可能需要根据自己的需求进行修改。