// 存储桶名称，由 bucketname-appid 组成，appid 必须填入，可以在 COS 控制台查看存储桶名称。 https://console.tencentcloud.com/cos5/bucket
let bucket = "examplebucket-1250000000";
let request = new DeleteMultipleObjectRequest(bucket);

let objects = new List<DeleteObject>();
objects.add(new DeleteObject("dir/object1"))
objects.add(new DeleteObject("dir/object2"));
request.objects = objects;

try {
  let result = await CosXmlBaseService.default().deleteMultipleObject(request)
  // result中包括http headers等
} catch (e) {
  // 异常处理
}