main.ts:

import "https://deno.land/x/xhr@0.1.2/mod.ts";
import AV from "https://esm.sh/leancloud-storage@4.12.0?target=es2021";
import * as leanAdapters from "https://esm.sh/@leancloud/platform-adapters-node@1.5.2?target=es2021";
AV.setAdapters(leanAdapters);
// Your code here

配置文件deno.jsonc:

{
  "$schema": "https://deno.land/x/deno/cli/schemas/config-file.v1.json",
  "compilerOptions": {
    "lib": [
      "deno.ns",
      "deno.unstable",
      "dom",
      "dom.iterable",
      "dom.asynciterable"
    ],
    "strict": true
  }
}