130 lines
1.6 KiB
Markdown
130 lines
1.6 KiB
Markdown
---
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title: 数学函数
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date: 2020-07-20 17:09:41
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tags: [Python]
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categories: [Python]
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author: Anges黎梦
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---
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## abs()绝对值
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> 功能：返回数字的绝对值
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示例：
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```Python
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# 取列表中每一个元素的绝对值
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test_list = [12.45,0,-19.69]
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for i in test_list:
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print(abs(i))
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```
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执行结果：
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```Python
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12.45
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0
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19.69
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```
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## divmod()获取商和余数的元组
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> 功能：把除数和余数运算结果结合起来，返回一个包含商和余数的元组（a//b）（a%b）
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示例：
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```Python
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# a:被除数 b:除数, 9除以2
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a = divmod(9, 2)
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print(a)
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```
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执行结果：
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4为整数，1为余数
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```Python
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(4, 1)
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```
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## sum()求和计算
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> 功能：函数对列表元组和集合等序列进行求和计算
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示例：
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```Python
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a = sum([1, 2])
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print(a)
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```
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执行结果：
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```Python
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3
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```
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`注：参数iterable，为一个可迭代对象。`
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## round()四舍五入
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> 功能：返回浮点数四舍五入的值
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示例：
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```Python
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a = round(4.19)
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b = round(4.99)
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print(a)
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print(b)
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```
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执行结果：
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```Python
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4
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5
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```
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## pow()计算任意数n次方的值
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> 功能：返回x的y次方的值
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示例：
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```Python
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a = pow(2, 3)
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print(a)
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```
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执行结果：
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```Python
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8
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```
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## min()取出给定参数的最小值
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> 功能：获取指定数值或者指定序列中最小值
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示例：
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```Python
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a = min([47, 83, 45, 69, 32, 71, 74, 92, 58, 68])
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print(a)
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```
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执行结果：
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```Python
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32
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```
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## max()取出给定参数的最大值
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> 功能：获取指定数值或者指定序列中最大值
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示例：
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```Python
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a = min([47, 83, 45, 69, 32, 71, 74, 92, 58, 68])
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print(a)
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```
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执行结果：
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```Python
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92
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```
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