修复生成tfrecord文件时的bug

tensnsorflow/es/feature.py

@@ -110,7 +110,7 @@ def app_list_func(x,l):
     b = x.split(",")
     e = []
     for i in b:
-        if i in l.keys:
+        if i in l.keys():
             e.append(l[i])
         else:
             e.append(0)