【请求参数】：{"articles":[{"thumb_media_id":"XCDo7ZYUVMM1KRGUT8uTYxQiwahIUq6c52dpWhKIVDVpk0nE4RSMjKLVsOKWrOZp","title":"测试","content":"红1","author":"test","content_source_url":"www.baidu.com","digest":"digest","show_cover_pic":"0"}]}

【错误信息】：{"errcode":40007,"errmsg":"invalid media_id hint: [nEjjPA0051d117] rid: 63fc96c3-163851e4-6963e541"}