A .水泵停止供水
B .水泵開始供水
C .發(fā)送“水泵斷電”指令到執(zhí)行器,執(zhí)行器按指令關(guān)閉水泵
D .發(fā)送“水泵通電”指令到執(zhí)行器,執(zhí)行器按指令打開水泵
①,②,③,④。
sum = 0
a, b, c, d = 0, 0, 0, 0
for i in range( , 196, ):
a = sum // 100
b =
c =
d = sum % 10
print(a, b, c, d)
a = input( )
b = input( )
if a>b:
print()
a<b:
print()
print()