修复一个gps信息为空时崩溃的bug

lizhanwei

2020-01-13 dc5f4b05a1235f17d42d9e4ee44c4ed4e236756c

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[
 
  {
    "stu_id":1001,
    "ID": "410923198910162545",
    "name": "李四",
    "sex":2
  }
]