让我们先尝试将这两个名字存储到变量中: # using the addition operator with variables first_name = "John" last_name = "Smith" full_name = first_name + " " + last_name print(full_name) 去查查那个手机。我们得到与前一个细胞完全相同的输出;然而,这次我们使用了变量来存储信息。 格式化字符串 ...
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Thenotkeyword is a logical operator, and is used to reverse the result of the conditional statement: Example Test ifais NOT greater thanb: a =33 b =200 ifnot a > b: print("a is NOT greater than b") Try it Yourself » Nested If ...
Note: You could simplify the function body above by taking advantage of the ternary if (?:), which is sometimes called the Elvis operator because it looks like the hairstyle of the famous singer: JavaScript return (n > 1) ? fib(n-2) + fib(n-1) : 1; Copied! This is equivalent ...
https://www.w3schools.com/python/trypython.asp?filename=demo_datetime1 Python 将时间戳转换为指定格式日期 time importtime# 获得当前时间时间戳now =int(time.time())#转换为其他日期格式,如:"%Y-%m-%d %H:%M:%S"timeArray = time.localtime(now) ...
https://docs.python.org/zh-cn/3.9/tutorial/index.html refs https://www.runoob.com/python3/python3-data-type.html https://realpython.com/python-data-types/ https://www.programiz.com/python-programming/variables-datatypes https://www.w3schools.com/python/python_datatypes.asp ...
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# cls class Rectangle: def __init__(self, width, height): self.width = width self.height = height # 实例方法 def calculate_area(self): return self.width * self.height # 类方法 (类似 js 的 static method) @classmethod def new_square(cls, side_length): return cls(side_length, side_...
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