Java文件上传，以及javascr ipt的一些读秒跳转功能的演示，包括完整的可运行的程序，只要粘贴复制即可在任何Java程序中运行-Java file upload, as well as some javascr ipt countdown demonstration jump features, including full program can run as long as you can paste the copied in any Java program to run

在Java语言中，提供了很丰富的流程控制语言，包括选择控制语句、循环控制语句、跳转控制语句。本章将对这些控制语句作详细介绍。-In the Java language, provides a very rich process control language, including the choice of control statements, loop control statements, jump control statements. This chapter describes i