@sgmrt · Post #2473 · 01.09.2025 г., 01:19
[CCL] UPDATE: Train services between #Promenade and #MarinaBay have resumed their scheduled operations. Free regular bus services have ceased. - SMRT
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Изворен канал @pythonotes · Post #156 · 2 окт.
Те, кто в Python не первый день, хорошо знают, что на число можно умножить не только число, но и другие типы. Главное, чтобы у этих типов была реализация такой операции. # list >>> [1] * 3 [1, 1, 1] # tuple >>> (2, 3) * 3 (2, 3, 2, 3, 2, 3) # string >>> "A" * 3 "AAA" Так работает полиморфизм стандартных типов. Интересно здесь то, что это сработает и в том случае, когда порядок операндов обратный. То есть int умножить на [тип]. # list >>> 3 * [1] [1, 1, 1] # tuple >>> 3 * (2, 3) (2, 3, 2, 3, 2, 3) # string >>> 3 * "A" "AAA" Если хотите реализовать такое поведение в ваших классах то следует помнить два момента: 1. Если множитель справа, то вам нужно реализовать метод __mul__, наш класс это первый операнд, то есть слева. myType * 3 2. Если множитель слева, то вам нужно реализовать метод __rmul__, наш класс это второй операнд, справа. 3* myType Всё тоже самое можно делать и для других математических операторов. И если в этом примере действие и результат будут фактически одинаковыми, то бывают ситуации, когда это не так. Например, при умножении матриц имеет значение порядок операндов. Для других операторов, таких как деление или сдвиг, очень важно кто с какой стороны находится. >>> 2/4, 4/2 (0.5, 2.0) >>> 2<<3, 3<<2 (16, 12) >>> 100%15, 15%100 (10, 15) #tricks#basic
Пребарај: #marinabay
@sgmrt · Post #2473 · 01.09.2025 г., 01:19
[CCL] UPDATE: Train services between #Promenade and #MarinaBay have resumed their scheduled operations. Free regular bus services have ceased. - SMRT
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@sgmrt · Post #2472 · 01.09.2025 г., 01:14
[CCL] UPDATE: Train services are progressively resuming their scheduled service between #Promenade and #MarinaBay. - SMRT
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@sgmrt · Post #2471 · 01.09.2025 г., 01:04
[CCL] UPDATE: Due to a train fault, train service is expected to recover its scheduled service in 15 minutes between #Promenade and #MarinaBay. We apologise for any inconvenience caused. Please approach our station staff if you need further assistance. - SMRT
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@sgmrt · Post #2470 · 01.09.2025 г., 00:54
[CCL] Update: Free regular bus services are available between #Promenade and #MarinaBay. You may download an e-Travel Chit as proof of your travel at https://bit.ly/39HsrAl if your journey has been affected. - SMRT
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@sgmrt · Post #2468 · 01.09.2025 г., 00:49
[CCL]: Due to a train fault, there is no train service between #MarinaBay and #Promenade. Free regular bus services are available between #MarinaBay and #Promenade. https://bit.ly/3JHKRD2 - SMRT
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@sgmrt · Post #1468 · 20.06.2022 г., 05:58
[CCL] UPDATE: Additional 10mins train travel time from #Promenade to #MarinaBay. We are working to recover service. - SMRT
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@URASingapore · Post #910 · 24.07.2024 г., 10:00
Singapore’s hot weather can be a bother if you take a stroll at Marina Bay. But with our solar-powered breeze shelters strategically placed along the promenade, you don’t need no Oppas to shelter you from the heat! 🌬 #UrbanDesign#DiscoverSingapore#MarinaBay
@sgmrt · Post #1894 · 22.03.2024 г., 02:35
[CCL] UPDATE: Normal train service has resumed. Free regular bus service between #PayaLebar and #DhobyGhaut / #MarinaBay has ceased. - SMRT
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@sgmrt · Post #1893 · 22.03.2024 г., 02:19
[CCL] UPDATE: Additional 20 mins train travel time from #PayaLebar to #DhobyGhaut / #MarinaBay, due to a train fault. Free regular bus service is available between #PayaLebar and #DhobyGhaut / #MarinaBay. - SMRT
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@sgmrt · Post #1892 · 22.03.2024 г., 01:55
[CCL] UPDATE: Additional 30 mins train travel time from #PayaLebar to #DhobyGhaut / #MarinaBay, due to a train fault. Free regular bus service are available between #PayaLebar and #DhobyGhaut / #MarinaBay. - SMRT
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@sgmrt · Post #1884 · 08.02.2024 г., 03:14
[CCL] UPDATE: Due to a signal fault, please add additional 20 minutes travel time between #DhobyGhaut, #MarinaBay and #PayaLebar. Free regular bus services are available between #DhobyGhaut, #MarinaBay and #PayaLebar. - SMRT
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@sgmrt · Post #1883 · 08.02.2024 г., 02:19
[CCL] UPDATE: Due to a signal fault, please add additional 15 minutes travel time between #DhobyGhaut, #MarinaBay and #PayaLebar. Free regular bus services are available between #DhobyGhaut, #MarinaBay and #PayaLebar. - SMRT
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