关于Beginning Python：从Python开始 – 计算圆的面积

Beginning Python - Calculating Area of a Circle

首先，我使用的是pyscripter ver。2.6.0.0 x64，带python版本。3.3.0 x64

我正在上一门关于Python的入门课程，我完全被难住了。我被问到这个问题：

编写一个名为calculateArea的函数。函数应采用表示圆半径的参数，并返回圆的面积。编写一个程序，要求用户输入圈数。然后，程序应该显示一个图表，列出圆的半径和它的面积，从1开始，一直到并包括用户输入的数字。

这是我迄今为止取得的进展：

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def calculateArea(radius):
pi = 3.141
area = (pi * (radius ** 2))
return area

n = int(input("Please enter the amount of circles you wish to test."))

#r = float(input("Please enter the circle's radius."))

area = calculateArea(n)

#print("The area of the circle with a radius of:", r,"equals:", area)

print("Circle('s)"," ","Radius Given"," ","Calculated Area")
print("**********"," ","************"," ","***************")

for x in range(1, n+1):
print(x," "," "," "," ", area)

这是当我输入5圈进行测试时的电流输出：

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>>>
Circle('s) Radius Given Calculated Area
********** ************ ***************
1 78.525
2 78.525
3 78.525
4 78.525
5 78.525
>>>

我现在想弄明白的是，如何修正输出，它从我输入的n中计算出被测圆的面积。然后我需要帮助来获得半径来显示/工作。当我使用r让一个用户输入一个起始半径时，我一直得到错误：

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Traceback (most recent call last):
File"<string>", line 420, in run_nodebug
File"<module1>", line 28, in <module>
TypeError: 'float' object cannot be interpreted as an integer