@sgmrt · Post #2390 · 19.07.2025 г., 06:49
[BPLRT]: Due to a train fault, trains are moving slower towards #ChoaChuKang on Service A. We are investigating the fault. https://bit.ly/450rFrj - SMRT
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Изворен канал @pythonotes · Post #76 · 27 апр.
Ранее я делал серию постов про битовые операторы. Вот вам ещё один наглядный пример как это используется в Python в модуле re. Чтобы указать флаг для компилятора нам надо указать его после передаваемой строки. Например, добавляем флаг для игнорирования переноса строки. pattern = re.compile(r"(\w+)+") words = pattern.search(text, re.DOTALL) А как указать несколько флагов? Ведь явно будут ситуации когда нам потребуется больше одного. Кто читал посты по битовые операторы уже понял как. pattern.search(text, re.DOTALL | re.VERBOSE) А теперь смотрим исходники, что находится в этих атрибутах? Не удивительно, степени двойки. Почему? Потому что каждое следующее значение это сдвиг единицы влево. >>> for n in [1, 2, 4, 8, 16, 32, 64, 128, 256]: >>> print(bin(n)) 0b1 0b10 0b100 0b1000 0b10000 0b100000 0b1000000 0b10000000 0b100000000 Чтобы было понятней, давайте напишем тоже самое но иначе, добавим ведущие нули: 000000001 000000010 000000100 000001000 000010000 000100000 001000000 010000000 100000000 Не понятно что тут происходит? Читай три поста про битовые операторы начиная с этого ➡️https://t.me/pythonotes/45 В общем, это пример применения побитовых операций в самом Python. Теперь вы знаете Python еще немного лучше) #tricks#regex#libs
Пребарај: #choachukang
@sgmrt · Post #2390 · 19.07.2025 г., 06:49
[BPLRT]: Due to a train fault, trains are moving slower towards #ChoaChuKang on Service A. We are investigating the fault. https://bit.ly/450rFrj - SMRT
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@sgmrt · Post #1961 · 03.06.2024 г., 12:39
[UPDATE] [NSL] : South bound train service from #ChoaChuKang to #Woodlands has resumed. Free Regular Bus and Bridging Bus have ceased. - SMRT
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@sgmrt · Post #1960 · 03.06.2024 г., 12:14
[UPDATE] [NSL] : South bound train service from #ChoaChuKang to #Woodlands has resumed. Free Regular Bus and Bridging Bus Services are still available between #ChoaChuKang and #Woodlands. - SMRT
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@sgmrt · Post #1959 · 03.06.2024 г., 11:54
[UPDATE] [NSL]North bound trains from #Woodlands towards #ChoaChuKang is in service. - SMRT
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@sgmrt · Post #1958 · 03.06.2024 г., 11:49
[UPDATE] [NSL]Due to traction power fault, there is no South bound train service from #ChoaChuKang to #Woodlands. Free Regular Bus and Bridging Bus Services are available between #ChoaChuKang and #Woodlands, passengers are advised to take alternative lines via [TEL] & [CCL] line. - SMRT
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@sgmrt · Post #1617 · 05.02.2023 г., 23:53
[NSL] UPDATE: Fault cleared, train services are progressively being restored. You may still experience crowding at some stations. Free regular bus & free bridging bus services are still available btwn #ChoaChuKang and #Yishun. - SMRT
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@sgmrt · Post #1615 · 05.02.2023 г., 23:39
[NSL] UPDATE: Fault cleared, train services are progressively being restored. Pls add 5mins train travel time btwn #Yishun and #ChoaChuKang. Free regular bus & free bridging bus services are still available btwn #ChoaChuKang and #Yishun. - SMRT
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@sgmrt · Post #1614 · 05.02.2023 г., 23:23
[NSL] UPDATE: Fault cleared, train services are progressively being restored. Pls add 15mins train travel time btwn #Yishun and #ChoaChuKang. Free regular bus and free bridging bus services are still available btwn #ChoaChuKang and #Yishun. - SMRT
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@sgmrt · Post #1613 · 05.02.2023 г., 23:10
[NSL]: UPDATE: Due to a track fault, pls add 25mins train travel time btwn #ChoaChuKang and #Yishun. Free regular bus is available btwn #ChoaChuKang and #Yishun. You may take TEL or other alternative lines to city area. - SMRT
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@sgmrt · Post #1612 · 05.02.2023 г., 23:10
[NSL]: UPDATE: Due to a track fault, pls add 25mins train travel time btwn #ChoaChuKang and #Yishun. Free regular bus and free bridging bus services are available btwn #ChoaChuKang and #Yishun. You may take TEL or other alternative lines to city area. - SMRT
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@sgmrt · Post #1611 · 05.02.2023 г., 22:53
[NSL]: UPDATE: Due to a track fault, pls add 15mins train travel time btwn #ChoaChuKang and #Yishun. Free regular bus is available btwn #ChoaChuKang and #Yishun. You may also take alternative line to city area. - SMRT
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@sgmrt · Post #1610 · 05.02.2023 г., 22:53
[NSL]: UPDATE: Due to a track fault, pls add 15mins train travel time btwn #ChoaChuKang and #Yishun. Free regular bus is available btwn #ChoaChuKang and #Yishun. You may take TEL or other alternative lines to city area. - SMRT
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