如何使用YapDatabase for swift在表格中保存多个条目

let database = YapDatabase()

let connection = database.newConnection()

let tableName = "myTable"
connection.asyncReadWrite { transaction in
    transaction.createTableWithName(tableName)
}

let key = "item1"
let object = "This is item 1"
connection.asyncReadWrite { transaction in
    transaction.setObject(object, forKey: key, inCollection: tableName)
}

let key = "item1"
connection.read { transaction in
    if let object = transaction.object(forKey: key, inCollection: tableName) as? String {
        print(object)
    }
}

let key = "item1"
let updatedObject = "This is the updated item 1"
connection.asyncReadWrite { transaction in
    transaction.setObject(updatedObject, forKey: key, inCollection: tableName)
}

let key = "item1"
connection.asyncReadWrite { transaction in
    transaction.removeObject(forKey: key, inCollection: tableName)
}