npm install cos-js-sdk-v5
import COS from 'cos-js-sdk-v5'

//定义一个cos 对象
const cos = new COS ({
        getAuthorization: function (options, callback) {
          callback ({
                //腾讯云账号上传信息
           TmpSecretId: tmpSecretId, 
          TmpSecretKey: tmpSecretKey,
          XCosSecurityToken: sessionToken,
          ExpiredTime: expiredTime
          });
        },
      });
//定义一个function
uploadFile (cos, file) {
      const _this=this
      cos.putObject (
        {
          Bucket: "",  // 存储桶名称
          Region: 'ap-chengdu', // 地区
          Key:`/uploads/zizhi/${new Date().getTime()}${file.name}` , // 图片名称
          Body: file,
          onHashProgress: function (progressData) {
            console.log ('校验中', JSON.stringify (progressData));
          },
          onProgress: function (progressData) {
            console.log ('上传中', JSON.stringify (progressData));
          },
        },
        function (err, data) {
          if (err) {
           this.error(file)
            return;
          }
          console.log(data)
          _this.success({url:`http://${data.Location}`})
        }
      );
    }