def check_table_existence(Function_name,database_table_name): try: connection = Function_name cursor = connection.cursor() cursor.execute(f"SELECT 1 FROM {database_table_name} LIMIT 1") result = cursor.fetchone() cursor.close() connection.close() if result: pass else: print(f"连接成功, 但表{database_table_name}不存在。") except pymysql.Error as e: print("Failed to connect or execute query:", str(e)) check_table_existence(get_bakinfo_mysql_connection,'test.bakinfo') Traceback (most recent call last): File "/root/test/4.py", line 354, in <module> check_table_existence(get_bakinfo_mysql_connection,'test.bakinfo') File "/root/test/4.py", line 342, in check_table_existence cursor = connection.cursor() AttributeError: 'function' object has no attribute 'cursor'

根据你的代码，错误是因为你将函数名 `Function_name` 直接赋值给了 `connection`，导致无法调用 `cursor()` 方法。你需要在调用函数时，加上括号 `()` 来执行函数并获取返回的数据库连接对象。

修改后的代码如下：

def check_table_existence(connection_func, database_table_name):
    try:
        connection = connection_func()  # 调用函数获取数据库连接对象
        cursor = connection.cursor()
        cursor.execute(f"SELECT 1 FROM {database_table_name} LIMIT 1")
        result = cursor.fetchone()
        cursor.close()
        connection.close()
        if result:
            pass
        else:
            print(f"连接成功, 但表{database_table_name}不存在。")
    except pymysql.Error as e:
        print("Failed to connect or execute query:", str(e))

check_table_existence(get_bakinfo_mysql_connection, 'test.bakinfo')

请确保在调用 `check_table_existence()` 函数时，传递的是获取数据库连接的函数名，并且该函数执行后返回有效的数据库连接对象。这样就能够正常执行检查表是否存在的操作了。