В продолжение прошлого поста про цифры в мире строк.
Почему методы isdigit() и isnumeric() не определяют в строке float и отрицательные значения?
Дело в том, что эти методы работают с ЦИФРАМИ, то есть с единичным символом. А строка "-2" или "3.4" это уже ЧИСЛО. То есть не символ а значение, записанное несколькими символами.
Все озвученные методы проходятся по каждому символу строки и проверяют их индивидуально.
В юникоде есть символы цифр с точками "🄀⒈⒉⒊⒋⒌⒍⒎⒏⒐"
Каждая из них это ОДИН СИМВОЛ, поэтому он будет считаться цифрой
>>> '⒌'.isdigit(), '⒌'.isnumeric()
True, True
Но когда мы пишем это выражение в два символа ( 5+точка), то это не работает.
>>> '5.'.isdigit(), '5.'.isnumeric()
False, False
А еще есть такие символы
>>> '⑴⑵⑶⑷⑸'.isdigit()
True
>>> '🄁🄂🄃'.isdigit()
True
Но они не преобразуются в десятичные цифры
>>> '⒈'.isdecimal()
False
>>> '🄃'.isdecimal()
False
>>> '⑶'.isdecimal()
False
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Get well soon. (NOT Get well early.)
We will launch a new edition of this book sometime soon.
Soon can also mean ‘a short time after then’.
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Early
Early means ‘near the beginning of a period of time we are talking about’. Early does not mean soon.
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Early this week, I had a strange experience. (NOT Soon this week, I had a strange experience.)
He had an accident early this month.
He will soon have an accident if he continues to drive like this. (NOT He will early have an accident…)
I get up early in the morning. (NOT I get up soon in the morning.)
Early can mean ‘before the expected time’.
I arrived early.
Early can be used as an adjective.
We will be grateful for an early reply.
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Quickly
There is a difference between soonand quickly. We use quickly to refer to the speed with which something is done. Soon means ‘before long’.
I got dressed quickly. (= I didn’t take a lot of time to get dressed.)
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