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在現有ADA代碼,我發現這兩條線:枚舉子範圍在ADA
type SWITCH_TYPE is (TI1, TO3, TI2, TO1, TI3, TO2);
subtype TI_SWITCH_TYPE is SWITCH_TYPE range TI1..TI2;
subtype TO_SWITCH_TYPE is SWITCH_TYPE range TO1..TO2;
是對TI_SWITCH_TYPE的TO3一部分?同樣,TI3是TO_SWITCH_TYPE的一部分嗎?