def main():
db = MyDataBase.GetInstance('MyDataBaseSample.xlsx')
db.DBAppendColumn(['data/column1', 'data/column2', 'data/column3'])
MyLogger.SetFraction(100)
dict = db.GetDict()
for i in range(100):
MyLogger.SetNumerator(i)
db.DBAppendRow([str(i), str(i), str(i)], dict)
db.DBImportDict(dict)
MyLogger.success(db.GetColumns())
MyLogger.success(db.GetDict())
MyLogger.success(db.GetStr())
MyLogger.success(db.GetHTML())
db.DBSort('data/column3', ascending=False)
db.DBDropDuplicates('data/column3')
db.DBWrite()
