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解读Python中degrees()方法的使用

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Release： 2016-06-10 15:12:24
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 degrees()方法从弧度转换到度角x
语法

以下是degrees()方法的语法：

degrees(x)
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注意：此函数是无法直接访问的，所以我们需要导入math模块，然后需要用math的静态对象来调用这个函数。
参数

返回值

  • x -- 这必须是一个数值。

此方法返回一个角度的度数值。
例子

下面的例子显示degrees()方法的使用。

#!/usr/bin/python
import math

print "degrees(3) : ", math.degrees(3)
print "degrees(-3) : ", math.degrees(-3)
print "degrees(0) : ", math.degrees(0)
print "degrees(math.pi) : ", math.degrees(math.pi)
print "degrees(math.pi/2) : ", math.degrees(math.pi/2)
print "degrees(math.pi/4) : ", math.degrees(math.pi/4)
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当我们运行上面的程序，它会产生以下结果：

degrees(3) : 171.887338539
degrees(-3) : -171.887338539
degrees(0) : 0.0
degrees(math.pi) : 180.0
degrees(math.pi/2) : 90.0
degrees(math.pi/4) : 45.0
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