千次阅读
2021-12-18 09:11:53

选择题

以下python代码输出什么?

import math

print(math.degrees(math.pi/2))

A 180.0

B 45.0

C 90.0

D 30.0

问题解析

1.math.degrees(x)方法将弧度转换为角度，以浮点数据类型返回x的角度值，并至少保留一位小数。

3.三种计算三角函数的方法均需导入math库。

4.题目中计算pi/2的角度制，答案为90，保留一位小数后返回值为90.0。

答案

正确答案是：C

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