# Precautions<a name="EN-US_TOPIC_0311018443"></a>

-   Pay attention to the operations of the front and back pointer of the node.
-   The linked list operation APIs are underlying APIs and do not check whether the input parameters are empty. You need to ensure that the input parameters are valid.
-   If the memory of a linked list node is dynamically applied for, release the memory when deleting the node.