有了函数,我们就不再每次写s = 3.14 * x * x,而是写成更有意义的函数调用 s = area_of_circle(x),而函数 area_of_circle 本身只需要写一次,就可以多次调用。 抽象是数学中非常常见的概念。举个例子: 计算数列的和,比如:1 + 2 + 3 + ... + 100,写起来十分不方便,于是数学家发明了求和符号∑,可...
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# 需要导入模块: from circle import Circle [as 别名]# 或者: from circle.Circle importarea[as 别名]fromcircleimportCircle bbd =25.1# NameError: name 'bbd_to_radius' is not definedc = Circle(bbd_to_radius(bbd))print'A circle with a bbd of 25.1'print'has a radius of',c.radiusprint'an...
示例1: print ▲ # 需要导入模块: from circle import Circle [as 别名]# 或者: from circle.Circle importcalculate_area[as 别名]fromcircleimportCirclefromrectangleimportRectanglefromregularimportRegular print("Calculate circunference and area of circle with radius 3") circle = Circle(3) circle.calculate...
getcircleArea函数求圆的面积python 定义函数getCircleArea(r),可以对指定r计算圆面积。计算公式math库的pi*r*r。 定义函数get_rList(n),功能:输入n个值放入列表并将列表return。 输入n,调用get_rList(n)获得列表rList。 遍历rList,对每个元素调用getCircleArea,并按格式输出。 注意:需导入程序中所需要的库,...
请简述Python中的继承机制。设计一个Circle(圆)类,该类中包括属性radius(半径),还包括___()、get___area()(求面积)共方法。设计完成后,创建Circle类的对象求周长和面积的功能。相关知识点: 试题来源: 解析 init#perimeter()(求周长)和get 反馈 收藏 ...
//Java program to Calculate Area of a Circle. import java.util.Scanner; public class AreaCircle { public static void main(String[] args) { double radius; Scanner sc = new Scanner(System.in); // input radius of circle System.out.print("Enter the Radius of Circle : "); radius = sc....
write a program in Python to input the radius of circle, calculate and display it's area and circumference. python 16th Jan 2021, 5:13 PM Garima Bakshi 4 Answers Sort by: Votes Answer + 3 Hi Garima Bakshi do you mind sharing your attempt? This is not...
// Rust program to calculate the area of circleusestd::io;fnmain() {letmutradius:f32=0.0;letmutarea:f32=0.0;letmutinput=String::new(); println!("Enter radius: "); io::stdin().read_line(&mutinput).expect("Not a valid string"); radius=input.trim().parse().expect("Not a valid...
5. Calculate Area of Circle A circle is a2Dshaped figure that consists of all points in a plane that are equidistant from a fixed center point. Area of Circle = π x r2 Where, r= Radius of the circle Assume, you have the value of the radius of a circle in cellC4. ...