我有这个类,但是当我运行此应用程序时什么也没给我显示。.我的表中有7列,表头显示在我的应用程序上,只是sqlite的数据不显示。解决这个问题?
class Students:
db_name = 'Lutai.db'
def run_query(self, query, parameters = ()):
with sqlite3.connect (self.db_name) as conn:
cursor = conn.cursor()
query_result = cursor.execute(query,parameters)
conn.commit()
return query_result
def viewing_records(self):
records = self.tree.get_children()
for element in records:
self.tree.delete(element)
query = "SELECT * FROM student ORDER BY nume DESC"
db_rows = self.run_query(query)
for row in db_rows:
self.tree.insert('', 0, text=row[1], values=row[2])
我的课在这里也包含标签等照片: