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文档地址：[https://developers.weixin.qq.com/doc/oplatform/openApi/OpenApiDoc/miniprogram-management/domain-management/setPrefetchDomain.html](https://gitee.com/link?target=https%3A%2F%2Fdevelopers.weixin.qq.com%2Fdoc%2Foplatform%2FopenApi%2FOpenApiDoc%2Fminiprogram-management%2Fdomain-management%2FsetPrefetchDomain.html)