链接：http://v0.api.upyun.com/%7Bpigcms:$bucket%7D/ 错误：{"msg":"need bucket name","code":40000003,"id":"b5c4d41dd4c0b1a47e9e12f6574e3f4e"}
链接：http://v0.api.upyun.com/%7Bpigcms:$bucket%7D/ 错误：{"msg":"need bucket name","code":40000003,"id":"b5c4d41dd4c0b1a47e9e12f6574e3f4e"}