0、In Python 2, the / operator usually meant integer division, but you could make it behave like floating point division by including a special directive in your code. In Python 3, the / operator always means floating point division.
# 除法(整数除法,结果向下取整) division_result = 7 // 2 # 结果为 3 # 取模(求余数) modulus_result = 9 % 4 # 结果为 1 # 幂运算 power_result = 2 ** 3 # 结果为 8 2.浮点型(Floating Point Numbers) 语法: 浮点型数据包含小数部分,用于表示实数。在 Python 中,你可以通过直接赋值一个小...
5.0 >>> 8 / 5 # division always returns a floating point number除法总是返回浮点数（当然在正式中您可以限制小数点后的位数）1.6 The integer numbers (e.g. 2, 4, 20) have type int, the ones with a fractional part (e.g. 5.0, 1.6) have type float. We will see more about num...
整型在 Python 中比较让人省心,因为它不区分有无符号并且永不溢出。但浮点型仍和绝大多数其他编程语言一样,依然有着精度问题,经常让很多刚进入编程世界大门的新人们感到困惑:"Why Are Floating Point Numbers Inaccurate?"。 相比数字,Python 里的字符串要复杂的多。要掌握它,你得先弄清楚 bytes 和 str 的区别。
", mul_result) # Output: 50# Division (floating-point result)div_result = x / yprint("Division:", div_result) # Output: 2.0# Integer Division (floor division)int_div_result = x // yprint("Integer Division:", int_div_result) # Output: 2# Modulo (remainder of division)mod_...
>>> from __future__ import division 这个导入将会引入Python 3 的除法规则。 四、延伸阅读 请参阅https://www.python.org/dev/peps/pep-0238/。 ——本文节选自《Python经典实例》 解决实际场景中的具体问题,全面了解Python语言特性 本书是Python经典实例解析,采用基于实例的方法编写,每个实例都会解决具体的问题...
>>> from __future__ import division >>> 5 / 2 2.5 >>> 9 / 2 4.5 >>> 9.0 / 2 4.5 >>> 9 / 2.0 4.5 1. 2. 3. 4. 注意了,引用了一个模块之后,再做除法,就不管什么情况,都是得到浮点数的结果了。 这就是轮子的力量。 余数 ...
A zero division error is caused if the right argument is zero. These arguments can be floating-point numbers. We find that the absolute value for the result is smaller than the second operand. And the result of using the modulo operator will always yield the same sign as the second operand...
(with rounding of fractions downwards) when you type 1/3 and “floating-point” (or decimal) division when you type 1.0/3.0. In order to get the expected behavior of division (standard in Python 3.0), you need to type: from __future__import division. Python中/是整除,要用真正的除法...
用内建函数能够查看对象的类型。,说明 3 是整数类型(Interger);则告诉我们那个对象是浮点型(Floating point real number)。与 id()的结果类似,type()得到的结果也是只读的。 至于对象的值,在这里就是对象本身了。 看来对象也不难理解。请保持自信,继续。