【http】Failed to load resource: the server responded with a status of 401 (Unauthorized)
异常现象：
测试结果：
Similar to 403 Forbidden, but specifically for use when authentication is possible but has failed onot vet been provided. The response must include a WWW-Authenticate header fielo containing a challenge applicable to the requested resource.
解决方法：
添加请求head所需的验证信息或token