内容简介：key1 == 0){Delay_ms(10);if(key1 == 0){while(key1 == 0);P0 = _crol_(P0, 1);}}else if(key2 == 0){Delay_ms(10);if(key2 == 0){while(key2 == 0);P0 = _cror_(P0, 1);}}} ...
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