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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。
2.math.radians(x)方法将角度转换为弧度,以浮点数据类型返回x的弧度值,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
温馨期待
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