写出下列程序运行的结果． （1）a=2                         （2）x=100 i=1                               i=1 WHILE  i＜=6                    DO a=a+1                            x=x+10 PRINT  i，a                      PRINT  i，x i=i+1                             i=i+1 WEND                           LOOP  UNTIL  x=200 END                            END．