网络设计有编译之后的可执行文件，Java的可以编译成class文件或者打包成jar文件；

　　程序可读性强，在必要的宏定义、变量、函数及程序段进行标注-Network design has the executable file after the compiler, Java can be compiled into a class file or package into a jar file　program readability, and, where necessary, the definition of macros, variables, functions and procedures of paragraph mark