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)
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)
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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