错误代码如下：
(
{
date = “2023-05-11 10:28:43 +0000”;
error = “<CKError 0x282340390: "Network Unavailable" (3/NSURLErrorDomain:-1005); "\U7f51\U7edc\U8fde\U63a5\U5df2\U4e2d\U65ad\U3002"; task = LocalDataTask .<12>>”;
},
{
date = “2023-05-11 10:28:48 +0000”;
error = “<CKError 0x28219f630: "Unknown Item" (11/2003); server message = "Record not found"; op = D9F650D9000C49E9; uuid = DEA2E416-3695-4E4D-922D-2DB25C632CA3; container ID = "iCloud.QReader.MarginStudy">”;
},
{
date = “2023-05-19 01:21:24 +0000”;
error = “<CKError 0x2862fae80: "Network Failure" (4/1013); "Saving asset failed">”;
},
{
date = “2023-05-19 01:21:24 +0000”;
error = “<CKError 0x283ae72d0: "Unknown Item" (11/2003); server message = "Record not found"; op = 5FA13DF637CE6A61; uuid = 68CCAF89-117A-47BC-B4A9-355226F99764; container ID = "iCloud.QReader.MarginStudy">”;
}
)