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. I