fix some api and example. (#612)

diff --git a/src/UserGuide/develop/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md b/src/UserGuide/develop/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
index ad6d461..4798efa 100644
--- a/src/UserGuide/develop/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
+++ b/src/UserGuide/develop/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
@@ -225,7 +225,7 @@
     :param max_row_num: The maximum number of rows to retrieve. Default is 1024.
     :return: A DataFrame containing data from the query result set.
     """
-    def read_next_data_frame(self, max_row_num : int = 1024) -> DataFrame
+    def read_data_frame(self, max_row_num : int = 1024) -> DataFrame
 
     
     """
diff --git a/src/UserGuide/develop/QuickStart/QuickStart-PYTHON.md b/src/UserGuide/develop/QuickStart/QuickStart-PYTHON.md
index 2d855a9..2f2cb2b 100644
--- a/src/UserGuide/develop/QuickStart/QuickStart-PYTHON.md
+++ b/src/UserGuide/develop/QuickStart/QuickStart-PYTHON.md
@@ -86,7 +86,7 @@
 
 column1 = ColumnSchema("id", TSDataType.STRING, ColumnCategory.TAG)
 column2 = ColumnSchema("id2", TSDataType.STRING, ColumnCategory.TAG)
-column3 = ColumnSchema("value", TSDataType.FLOAT, ColumnCategory.FIELD)
+column3 = ColumnSchema("value", TSDataType.DOUBLE, ColumnCategory.FIELD)
 table_schema = TableSchema("test_table", columns=[column1, column2, column3])
 
 
@@ -95,7 +95,7 @@
     tablet_row_num = 100
     tablet = Tablet(
                     ["id", "id2", "value"],
-                    [TSDataType.STRING, TSDataType.STRING, TSDataType.FLOAT],
+                    [TSDataType.STRING, TSDataType.STRING, TSDataType.DOUBLE],
                     tablet_row_num)
 
     for i in range(tablet_row_num):
diff --git a/src/UserGuide/latest/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md b/src/UserGuide/latest/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
index ad6d461..4798efa 100644
--- a/src/UserGuide/latest/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
+++ b/src/UserGuide/latest/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
@@ -225,7 +225,7 @@
     :param max_row_num: The maximum number of rows to retrieve. Default is 1024.
     :return: A DataFrame containing data from the query result set.
     """
-    def read_next_data_frame(self, max_row_num : int = 1024) -> DataFrame
+    def read_data_frame(self, max_row_num : int = 1024) -> DataFrame
 
     
     """
diff --git a/src/UserGuide/latest/QuickStart/QuickStart-PYTHON.md b/src/UserGuide/latest/QuickStart/QuickStart-PYTHON.md
index 2d855a9..2f2cb2b 100644
--- a/src/UserGuide/latest/QuickStart/QuickStart-PYTHON.md
+++ b/src/UserGuide/latest/QuickStart/QuickStart-PYTHON.md
@@ -86,7 +86,7 @@
 
 column1 = ColumnSchema("id", TSDataType.STRING, ColumnCategory.TAG)
 column2 = ColumnSchema("id2", TSDataType.STRING, ColumnCategory.TAG)
-column3 = ColumnSchema("value", TSDataType.FLOAT, ColumnCategory.FIELD)
+column3 = ColumnSchema("value", TSDataType.DOUBLE, ColumnCategory.FIELD)
 table_schema = TableSchema("test_table", columns=[column1, column2, column3])
 
 
@@ -95,7 +95,7 @@
     tablet_row_num = 100
     tablet = Tablet(
                     ["id", "id2", "value"],
-                    [TSDataType.STRING, TSDataType.STRING, TSDataType.FLOAT],
+                    [TSDataType.STRING, TSDataType.STRING, TSDataType.DOUBLE],
                     tablet_row_num)
 
     for i in range(tablet_row_num):
diff --git a/src/zh/UserGuide/develop/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md b/src/zh/UserGuide/develop/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
index 157d8cb..7143a58 100644
--- a/src/zh/UserGuide/develop/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
+++ b/src/zh/UserGuide/develop/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
@@ -214,7 +214,7 @@
     :param max_row_num: 要读取的最大行数,默认值为 1024。
     :return: 包含查询结果数据的 DataFrame。
     """
-    def read_next_data_frame(self, max_row_num : int = 1024) -> DataFrame
+    def read_data_frame(self, max_row_num : int = 1024) -> DataFrame
 
     """
     从查询结果集中按索引获取值。
diff --git a/src/zh/UserGuide/develop/QuickStart/QuickStart-PYTHON.md b/src/zh/UserGuide/develop/QuickStart/QuickStart-PYTHON.md
index 6d0b32c..6978bed 100644
--- a/src/zh/UserGuide/develop/QuickStart/QuickStart-PYTHON.md
+++ b/src/zh/UserGuide/develop/QuickStart/QuickStart-PYTHON.md
@@ -94,7 +94,7 @@
 
 column1 = ColumnSchema("id", TSDataType.STRING, ColumnCategory.TAG)
 column2 = ColumnSchema("id2", TSDataType.STRING, ColumnCategory.TAG)
-column3 = ColumnSchema("value", TSDataType.FLOAT, ColumnCategory.FIELD)
+column3 = ColumnSchema("value", TSDataType.DOUBLE, ColumnCategory.FIELD)
 table_schema = TableSchema("test_table", columns=[column1, column2, column3])
 
 
@@ -103,7 +103,7 @@
     tablet_row_num = 100
     tablet = Tablet(
                     ["id", "id2", "value"],
-                    [TSDataType.STRING, TSDataType.STRING, TSDataType.FLOAT],
+                    [TSDataType.STRING, TSDataType.STRING, TSDataType.DOUBLE],
                     tablet_row_num)
 
     for i in range(tablet_row_num):
diff --git a/src/zh/UserGuide/latest/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md b/src/zh/UserGuide/latest/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
index 157d8cb..7143a58 100644
--- a/src/zh/UserGuide/latest/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
+++ b/src/zh/UserGuide/latest/QuickStart/InterfaceDefinition/InterfaceDefinition-Python.md
@@ -214,7 +214,7 @@
     :param max_row_num: 要读取的最大行数,默认值为 1024。
     :return: 包含查询结果数据的 DataFrame。
     """
-    def read_next_data_frame(self, max_row_num : int = 1024) -> DataFrame
+    def read_data_frame(self, max_row_num : int = 1024) -> DataFrame
 
     """
     从查询结果集中按索引获取值。
diff --git a/src/zh/UserGuide/latest/QuickStart/QuickStart-PYTHON.md b/src/zh/UserGuide/latest/QuickStart/QuickStart-PYTHON.md
index 6d0b32c..6978bed 100644
--- a/src/zh/UserGuide/latest/QuickStart/QuickStart-PYTHON.md
+++ b/src/zh/UserGuide/latest/QuickStart/QuickStart-PYTHON.md
@@ -94,7 +94,7 @@
 
 column1 = ColumnSchema("id", TSDataType.STRING, ColumnCategory.TAG)
 column2 = ColumnSchema("id2", TSDataType.STRING, ColumnCategory.TAG)
-column3 = ColumnSchema("value", TSDataType.FLOAT, ColumnCategory.FIELD)
+column3 = ColumnSchema("value", TSDataType.DOUBLE, ColumnCategory.FIELD)
 table_schema = TableSchema("test_table", columns=[column1, column2, column3])
 
 
@@ -103,7 +103,7 @@
     tablet_row_num = 100
     tablet = Tablet(
                     ["id", "id2", "value"],
-                    [TSDataType.STRING, TSDataType.STRING, TSDataType.FLOAT],
+                    [TSDataType.STRING, TSDataType.STRING, TSDataType.DOUBLE],
                     tablet_row_num)
 
     for i in range(tablet_row_num):