异常处理是 Java 语言的重要语言机制, 正确、合理地处理异常对程序的可靠性、健壮性是十分重要的。在分析了异常处理技术的概念和思想后, 对异常处理提出了指导原则。-Exception handling is an important language mechanism of Java, the correct and reasonable treatment of abnormal program reliability and robustness is very important. In the analysis of the concept and thought of exception handling technology, put forward the guiding principle of exception handling.