update API

fastNLP/api/api.py

@@ -1,11 +1,16 @@
 
+import _pickle
+
 
 class API:
     def __init__(self):
-        pass
+        self.pipeline = None
+        self.model = None
 
     def predict(self):
         pass
 
-    def load(self):
-        pass
+    def load(self, name):
+        _dict = _pickle.load(name)
+        self.pipeline = _dict['pipeline']
+        self.model = _dict['model']