Added para datasource to database, modified calling method of database

pyat/DataBase.py

@@ -33,7 +33,7 @@ class DataBase():
     """
     获取数据库中的剖面信息
     """
-    def __init__(self,ETOPO1path,STpath):
+    def __init__(self,ETOPO1path,STpath,dataSource):
         # 打开ETOPO1数据
         fileETOPO1 = ETOPO1path+'/ETOPO1_Bed_g_gmt4.nc'
         dataETOPO1 = Dataset(fileETOPO1)