function uploadFile(filePath) {
     return new Promise((resolve, reject) => {
          if (!filePath) {
               const err = new Error('uploadFile requires a filePath parameter');
               console.error('上传失败：未提供文件路径', err);
               return reject(err);
          }
          // 获取token，有就丢进请求头
          const tokenString = wx.getStorageSync('access_token');
          const header = {
               'Authorization': `${tokenString}`
          };
          wx.uploadFile({
               filePath: filePath,
               name: 'file',
               header: header,
               url: 'http://scrm.1024tool.vip/api/xcx/upload/image',
               success: (res) => {
                    const data = JSON.parse(res.data);
                    resolve('http://scrm.1024tool.vip/' + data.preview_image_url);

               },
               fail: (err) => {
                    console.error('上传失败', err);
                    reject(err);
               }
          });
     })

}
export default uploadFile;