Share Object

支持多用户读，多程序共享数据，并支持锁机制，共享数据存储在共享对象的属性中。

How to use Shared Object?
1. Create an area
  Tcode: SHMA 
  Generate two class:  Area class and Area root class
 
  Tcode: SHMM   Monitor shared memory
 
2. Create program to write data into area
  
3. Create program to read data from area