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Изворен канал @pythonotes · Post #45 · 2 мар.

В фреймворке PyQt (и PySide тоже) часто встречается настройка чего-либо с помощью так называемых флагов. widget.setWindowFlags(Qt.Window) Взаимодействие нескольких флагов делается с помощью бинарных (или побитовых) операторов. Несколько флагов можно указать с помощью оператора "|" list_item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsEnabled) исключить флаг из уже имеющегося набора можно так list_item.setFlags(list_item.flags() ^ Qt.ItemIsEnabled) Добавить новый флаг к имеющимся можно так list_item.setFlags(list_item.flags() | Qt.ItemIsEnabled) А проверка наличия делается так is_enabled = item.flags() & Qt.ItemIsEnabled > 0 Почему именно так? Всё дело в том как именно работают побитовые операторы. Но об этом в следующем посте. #qt

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Journey to Fluency

@fluencyinenglish · Post #7231 · 11.07.2019 г., 15:44

#vocabulary #collocations #ability @fluencyinenglish @fluencyinenglish @fluencyinenglish a‧bil‧i‧ty /əˈbɪləti/ noun (plural abilities) 1 [countable] the state of being able to do something ❇️ability to do something the ability to walk The health center serves all patients, regardless of their ability to pay. ❇️ [countable, uncountable] someone’s level of skill at doing something The test measures your mathematical ability. mixed ability classes ❇️of high/low etc ability students of average ability There are musicians of all abilities. ❇️somebody's abilities as something He showed his abilities as a leader @fluencyinenglish @fluencyinenglish @fluencyinenglish 🔹🔹Grammar Ability is followed by an infinitive with ‘to’, not by an -ing form. You say:I admire his ability to listen. ✗Don’t say: I admire his ability of listening. @fluencyinenglish @fluencyinenglish @fluencyinenglish 👉COLLOCATIONS high/low/average ability great/considerable ability remarkable/outstanding/exceptional ability mixed ability (=at different levels) uncanny ability (=an unusual ability that is difficult to explain) 🔹He has an uncanny ability for spotting investment opportunities. natural ability (also innate ability formal)(=an ability that you are born with) physical/athletic ability artistic/creative ability musical ability acting ability mental ability intellectual/academic ability verbal/linguistic ability (=language skills) The test is intended to measure the children's linguistic ability. mathematical ability proven ability (=that you have proved through your achievements) @fluencyinenglish @fluencyinenglish @fluencyinenglish 👉VERBS have the ability to do something (also possess the ability to do somethingformal) show/demonstrate the ability to do something lack the ability to do something @fluencyinenglish @fluencyinenglish @fluencyinenglish 👉PHRASES a level of ability/ability level a range of ability/ability range a test of ability/an ability test an ability group (=a group that students are taught in, based on their level of ability) @fluencyinenglish @fluencyinenglish @fluencyinenglish

Journey to Fluency

@fluencyinenglish · Post #6333 · 14.08.2018 г., 09:27

#vocabulary #collocations #ability @fluencyinenglish 💎Ability: skill/power to do sth شایستگی ، توانایی ، لیاقت ،صلاحیت ، قابلیت ، استطاعت 💎صفاتی که معمولا با ability می آیند. @fluencyinenglish Exceptional Extraordinary Great Outstanding Remarkable Uncanny Inherent Innate/natural ____________________________ VERB + ABILITY در ادامه ability را با افعالی که می توان به کار برد را مشاهده می کنید. @fluencyinenglish Have Demonstrate Show Acquire Develop Lack Lose Appreciate Recognize Examples: 🔵Both players demonstrated their ability to hit the ball hard. 🔵Fox's abilities were soon recognized. ____________________________ PHRASES @fluencyinenglish ⚪️a level of ability: There was a high level of ability among the school leavers. ⚪️a range of ability/abilities: I taught a wide range of abilities. @fluencyinenglish