Libot，A robot for library QA.

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Libot后端接口说明

1. 请求方式POST

2. 请求地址：xxx.xxx.xxx.xxx:8888

3. url参数说明：

   1. target=graph_qa，知识库问答

   2. target=search_qa，检索式问答

   3. target=all， 调用所有现有问答方案

4. json请求参数说明：
    {
     “question”: “问题字符串”
    }

5. 返回json格式说明：
    a) Graph_QA:
     {    “graph_answer”:”回答字符串”   }
    b) Search_qa:
     {
       "search_answer": [
        { "question": "相似问题1", "score": "0.0", "answer": "相似问题1的答案" },
        { "question": "相似问题2", "score": "0.0", "answer": "相似问题2的答案" },
        { "question": "相似问题3", "score": "0.0", "answer": "相似问题3的答案" }
       ]
     }
   

 c) All:
  {
    "search_answer": [
     { "question": "相似问题1", "score": "0.0", "answer": "相似问题1的答案" },
     { "question": "相似问题2", "score": "0.0", "answer": "相似问题2的答案" },
     { "question": "相似问题3", "score": "0.0", "answer": "相似问题3的答案" }
    ]，
   “graph_answer”:”回答字符串”
  }
6. 截图