如何在Python中用if语句实现弧度与角度互转的角度转换器？

Let's put together this angle converter properly—first, we need to fix the missing import for π (since your original functions reference pi but don't pull it from the math module, which would cause an error otherwise). Here's the complete, working implementation:

Full Code #

import math

def degree_to_radian(in_degree):
    angles_in_radian = (in_degree * math.pi) / 180
    return angles_in_radian

def radian_to_degree(in_radian):
    angles_in_degree = in_radian * 180 / math.pi
    return angles_in_degree

def angle_converter(in_num, in_type):
    # Check input type and route to the right conversion function
    if in_type == 'Degree':
        converted_val = degree_to_radian(in_num)
        return f"Degree {in_num} is equal to {converted_val} Radian"
    elif in_type == 'Radian':
        converted_val = radian_to_degree(in_num)
        return f"Radian {in_num} is equal to {converted_val} Degree"
    # Handle invalid input types with a clear message
    else:
        return "Not a valid type."

How It Works #

• We start by importing math to access the precise, pre-defined value of π (math.pi).
• The degree_to_radian and radian_to_degree functions stick exactly to your original conversion logic—no changes there.
• The angle_converter wrapper function checks the in_type parameter to decide which conversion to run, then returns a neatly formatted string with the result. If the input type isn't 'Degree' or 'Radian', it returns an error message as specified.

Test Examples #

Run these calls to confirm the output matches your requirements:

• angle_converter(2.5, 'Degree') → Degree 2.5 is equal to 0.04363323129985824 Radian
• angle_converter(2.5, 'Radian') → Radian 2.5 is equal to 143.2394487827058 Degree
• angle_converter(2.5, 'Float') → Not a valid type.

内容的提问来源于stack exchange，提问作者user9276239