说明：  delphi写的一个可以读取当前CPU使用率与内存使用率的DLL。 调用CPUusage读取CPU使用率，返回值是double 调用GetMemoryUsage读取内存使用率，返回值是double
(delphi write one can read the current CPU utilization and memory usage of the DLL. Call CPUusage read the CPU utilization, the return value is double the memory usage is called GetMemoryUsage read, the return value is double)