提交mcu info ，修改崩溃bug

lizhanwei

2020-02-28 b5044d0daf6e6b5702b824d8f6f97c23fec454a0

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[
  {
    "stu_id":1001,
    "ID": "410923198910162545",
    "name": "",
    "sex":2,
    "head_url":""
 
  }
]