摘要: python中round函数的一个小坑——奇进偶弃 >>> round(3.1415,3)3.142>>> round(4.1415,3)4.141 >>> round(10.5)10>>> round(11.5)12 C#中也有类似的设计 https://learn.microsoft.com/e 阅读全文
posted @ 2022-09-24 09:16 ChuckLu 阅读(187) 评论(2) 推荐(0)
摘要: Why is exponentiation applied right to left? 回答1 The ** operator follows normal mathematical conventions; it is right-associative: In the usual comput 阅读全文
posted @ 2022-09-24 02:53 ChuckLu 阅读(40) 评论(0) 推荐(0)
摘要: Python Operator Precedence – Learn how to perform operations in Python here are many different types of operators. When evaluating complex expressions 阅读全文
posted @ 2022-09-24 02:51 ChuckLu 阅读(67) 评论(0) 推荐(0)
摘要: What do these operators mean (** , ^ , %, //)? [closed] 回答1 **: exponentiation 指数 ^: exclusive-or (bitwise) 异或 %: modulus //: divide with integral res 阅读全文
posted @ 2022-09-24 01:07 ChuckLu 阅读(49) 评论(0) 推荐(0)
摘要: https://docs.python.org/3/library/sys.html#sys.int_info sys.int_info A named tuple that holds information about Python’s internal representation of in 阅读全文
posted @ 2022-09-24 00:57 ChuckLu 阅读(116) 评论(0) 推荐(0)