用于恢复崩溃或电源故障的命令
Commands
DRAWINGRECOVERYHIDE(命令)
DRAWINGRECOVERY(命令)
System Variables
DRSTATE(系统变量)
ISAVEBAK(系统变量)
RECOVERYMODE(系统变量)
SAVETIME(系统变量)
REPORTERROR(系统变量)