The convenience layer API, a higher usability programming interface, is designed for frequently used document-operation scenarios.

便利层 API 是更容易使用的编程接口，是针对常用的文档操作场景设计的。

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Exception handling is a programming language construct designed to handle the occurrence of some condition (exception) that changes the normal flow of execution.

异常处理是一种编程语言构造，旨在处理某些更改常规执行流的情况(异常)。

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Jython is an implementation of the Python programming language designed to run on the JVM.

Jython是Python编程语言的一种实现，运行在JVM上。

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