Delphi:Delphi 获取内存使用状态，程序将得到内存总大孝可用内存多少等内存使用量信息，在XP下运行有些问题，其它系统没有测试，源代码可编译成功。

-Delphi: Delphi get memory usage, total memory the program will be a large number of available memory, such as filial memory usage information, run some problems in XP, did not test other systems, the source code can be compiled successfully.