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Web Performance Optimization

WebPerformanceOptimization 技术不断演进,包括: - LazyLoading:延迟加载非必要的资源,提升页面加载速度。- CodeSplitting:将代码拆分成更小的部分,按需加载。- HTTP/3:新一代HTTP协议,提升了网络传输性能和安...
开发笔记 开发笔记·2024-08-31

java decimalformat

DecimalFormat是Java中一个用于格式化数字的类。它可以将数字按照指定的模式进行格式化,并可以进行数字的格式化输出。DecimalFormat类可以通过设置模式字符串来指定数字的格式。模式字符串由一系列特殊字符和格式化符号组成,用于定义数字的显示方式。例如,可以使用"#,##0.00"来...
开发笔记 开发笔记·2024-08-30

liMarquee演示12种不同的无缝滚动效果

很实用的一款liMarquee演示12种不同的无缝滚动效果 实例代码!DOCTYPEhtmlhtmllang="zh-CN"headmetacharset="utf-8"titleliMarquee演示12种不同的无缝滚动效果-默认效果_sucaihuo/titleli...

keepalivetime

keepalivetime是一个与计算机网络相关的术语,它表示在TCP连接中,一个空闲连接在被关闭之前可以保持活跃的时间,这个时间段通常用于在没有数据传输时节省资源,以及在网络状况不佳时确保连接的可靠性。...
开发笔记 开发笔记·2024-06-21

.idea文件夹和.iml文件是什么?

.idea文件夹当使用IDEA或PyCharm或WebStorm作为IDE时,会自动生成.idea/文件夹来存放项目的配置信息。其中包括版本控制信息、历史记录等等。idea对module配置信息之意,infomationofmoduleiml是intellijidea的工程配置文件,里面是当前project的一些配置信...

ORA-56722: I/O request limit exceeded – call aborted

文档解释ORA-56722:I/Orequestlimitexceeded–callabortedCause:TheResourceManagerSWITCH_IO_REQSlimitwasexceeded.Action:Reducethecomplexityoftheupdateorquery,orcon...

ORA-38810: Implementation restriction: cannot drop edition that has a parent and a child

文档解释ORA-38810:Implementationrestriction:cannotdropeditionthathasaparentandachildCause:Thiserroroccurredbecauseanattemptwasmadetodropaneditionthathasaparentandac...

ORA-32150: Cannot perform operation on a null timestamp

文档解释ORA-32150:CannotperformoperationonanulltimestampCause:Thetimestampinvolvedinthisoperationisnull.Action:Usevalid,non-nulltimestampinstancetoperformthisoperat...

ORA-30053: invalid upper limit snapshot expression

文档解释ORA-30053:invalidupperlimitsnapshotexpressionCause:TheupperlimitsnapshotexpressionisgreaterthantheSQLstatementreadsnapshot.Action:Specifyavalidupperlimitsna...

ORA-41662: number of primitive events in the composite event exceeds maximum limit

文档解释ORA-41662:numberofprimitiveeventsinthecompositeeventexceedsmaximumlimitCause:Anattemptwasmadetocreateacompositeeventstructurewithmorethan32primitiveevents.A...

ORA-29821: specified primary operator does not exist

文档解释ORA-29821:specifiedprimaryoperatordoesnotexistCause:Thespecifiedprimaryoperatordoesnotexist.Action:Checktheprimaryoperatorandthesignaturespecified.ORA-29821...

ORA-48201: Field Length Exceeds Maximum [string] [string] [string]

文档解释ORA-48201:FieldLengthExceedsMaximum[string][string][string]Cause:Anillegalfieldlengthwasused.Action:Fixthecall.。ORA-48201:字段长度超出最大值[string][string][string]O...

ORA-32335: dimension must have at least one level

文档解释ORA-32335:dimensionmusthaveatleastonelevelCause:Anlevel-lessdimensionisnotallowed.Action:Donotdroptheonlylevelofadimension.ORA-32335:dimensionmusthaveatleas...

ORA-29543: Java command string not yet implemented

文档解释ORA-29543:JavacommandstringnotyetimplementedCause:AnattemptwasmadetouseaJavacommandthatisnotyetimplemented.Action:Donotusethecommand.ORA-29543是Oracle数据库中的错误...

ORA-26761: Standby Redo Logs not available for real time mining

文档解释ORA-26761:StandbyRedoLogsnotavailableforrealtimeminingCause:StandbyRedoLogsrequiredforrealtimeminingbydownstreamcaptureprocesswerenotavailable.Action:Checkt...
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