add slice.py

DAPlatform/views/slice.py

+import json
+from flask import Blueprint
+from flask import request
+from Dao import Slice
+
+slice = Blueprint("slice", __name__, url_prefix="/api/slice")
+
+
+@slice.route("/getPieces", methods=["GET"])
+def get_pieces():
+    taskId = request.args['taskId']
+    ret = Slice.find_slice_by_task(taskId)
+    res = {
+        'code': ret.code,
+        'message': ret.message,
+        'data': ret.data
+    }
+    return json.dumps(res)