本人高中菜鸟一枚，做这个完全是出于兴趣，如果有可改进之处，希望各位大佬多多指教
源码如下
"""
中文源码
名称：图形计算器.py
日期:2020.8.3
作者:li131464
"""
print("声明：计算过程一律使用厘米制（cm)")
#提前对pi赋值
p = 3.14
xdi = input("请选择计算类型1:面积，2：体积：")
print(type(xdi))
idx = int(xdi)
if idx == 1:
xi = input("请选择计算对象1:正方形，2：长方形，3圆形，4梯形：")
print(type(xi))
ix = int(xi)
if ix == 1:
a = input("请输入边长：")
aint = int(a)*int(a)
print("这个正方形的面积是：",aint,"cm^2")
print("本次计算完成，谢谢！")
elif ix == 2:
a = input("请输入边长：")
b = input("请输入另一边长：")
aint = int(a)*int(b)
print("这个长方形的面积是：",aint,"cm^2")
print("本次计算完成，谢谢！")
elif ix == 3:
a = input("请输入圆半径：")
aint = p*int(a)**2
print("这个圆的面积是：",aint,"cm^2")
print("本次计算完成，谢谢！")
elif ix == 4:
a = input("请输入梯形底边长：")
b = input("请输入梯形另一底边长：")
c = input("请输入梯形高：")
aint = (int(a)+int(b))*int(c)/2
print("这个梯形的面积是：",aint,"cm^2")
print("本次计算完成，谢谢！")
else:
print("很抱歉，您输入的选项暂时没有")
elif idx == 2:
xi = input("请选择计算对象1:正方体，2：长方体，3圆：")
print(type(xi))
ix = int(xi)
if ix == 1:
a = input("请输入正方体边长：")
aint = int(a)**3
print("这个正方体的体积是：",aint,"cm^3")
print("本次计算完成，谢谢！")
elif ix == 2:
a = input("请输入长方体长：")
b = input("请输入长方体宽：")
a = input("请输入长方体长：")
aint = int(a)*int(b)*int(c)
print("这个长方体的体积是：",aint,"cm^3")
print("本次计算完成，谢谢！")
elif ix == 3:
xz = input("请选择圆的具体类型1：圆球，2：圆柱，3：圆锥，4：圆台：")
print(type(xz))
zx = int(xz)
if zx == 1:
a = input("请输入圆球的半径：")
aint = (3/4)*p*int(a)**3
print("这个圆球的体积是：",aint,"cm^3")
print("本次计算完成，谢谢！")
elif zx == 2:
a = input("请输入圆柱的底面圆半径：")
b = input("请输入圆球的高：")
aint = int(b)*p*int(a)**2
print("这个圆柱的体积是：",aint,"cm^3")
print("本次计算完成，谢谢！")
elif zx == 3:
a = input("请输入圆锥的底面圆半径：")
b = input("请输入圆锥的高：")
aint = int(b)*(1/3)*p*int(a)**2
print("这个圆锥的体积是：",aint,"cm^3")
print("本次计算完成，谢谢！")
elif zx == 4:
a = input("请输入圆台一底面圆半径：")
b = input("请输入圆台另一底面圆半径：")
c = input("请输入圆台的高：")
aint = (1/3)*p*int(c)*(int(a)**2+int(b)**2+int(a)*int(b))
print("这个圆台的体积是：",aint,"cm^3")
print("本次计算完成，谢谢！")
else:
print("很抱歉，您输入的选项暂时没有")
else:
print("很抱歉，您输入的选项暂时没有")"""
English source code
name：Simple graphic calculator.py
date:2020.8.3
Author:li131464
"""
print("Statement: all calculations are in centimeter system（cm)")
p = 3.14
xdi = input("Please select calculation type 1: area, 2: volume：")
print(type(xdi))
idx = int(xdi)
if idx == 1:
xi = input("Please select 1: square, 2: rectangle, 3 circle, 4 trapezoid：")
print(type(xi))
ix = int(xi)
if ix == 1:
a = input("Please input side length：")
aint = int(a)*int(a)
print("The area of this square is：",aint,"cm^2")
print("This calculation is completed. Thank you！")
elif ix == 2:
a = input("Please input side length：")
b = input("Please enter the length of the other side：")
aint = int(a)*int(b)
print("The area of this rectangle is：",aint,"cm^2")
print("This calculation is completed. Thank you！")
elif ix == 3:
a = input("Please enter circle radius：")
aint = p*int(a)**2
print("The area of this circle is：",aint,"cm^2")
print("This calculation is completed. Thank you！")
elif ix == 4:
a = input("Please input trapezoid bottom length：")
b = input("Please input the length of the other bottom side of trapezoid：")
c = input("Please input trapezoid height：")
aint = (int(a)+int(b))*int(c)/2
print("The area of this trapezoid is：",aint,"cm^2")
print("This calculation is completed. Thank you！")
else:
print("Sorry, the options you entered are not available")
elif idx == 2:
xi = input("Please select the calculation object 1: cube, 2: box, 3 circle：")
print(type(xi))
ix = int(xi)
if ix == 1:
a = input("Please input the side length of cube：")
aint = int(a)**3
print("The volume of this cube is：",aint,"cm^3")
print("This calculation is completed. Thank you！")
elif ix == 2:
a = input("Please input the length of the box：")
b = input("Please input the width of the box：")
a = input("Please input the length of the box：")
aint = int(a)*int(b)*int(c)
print("The volume of this box is：",aint,"cm^3")
print("This calculation is completed. Thank you！")
elif ix == 3:
xz = input("Please select the specific type of circle: 1: ball, 2: cylinder, 3: cone, 4: cone：")
print(type(xz))
zx = int(xz)
if zx == 1:
a = input("Please enter the radius of the ball：")
aint = (3/4)*p*int(a)**3
print("The volume of this sphere is：",aint,"cm^3")
print("This calculation is completed. Thank you！")
elif zx == 2:
a = input("Please enter the radius of the bottom circle of the cylinder：")
b = input("Please enter the height of the ball：")
aint = int(b)*p*int(a)**2
print("The volume of this cylinder is：",aint,"cm^3")
print("This calculation is completed. Thank you！")
elif zx == 3:
a = input("Please enter the radius of the base circle of the cone：")
b = input("Please enter the height of the cone：")
aint = int(b)*(1/3)*p*int(a)**2
print("The volume of this cone is ：",aint,"cm^3")
print("This calculation is completed. Thank you！")
elif zx == 4:
a = input("Please enter the radius of the bottom of the cone：")
b = input("Please enter the radius of the other bottom of the cone：")
c = input("Please enter the height of the cone：")
aint = (1/3)*p*int(c)*(int(a)**2+int(b)**2+int(a)*int(b))
print("The volume of this cone is：",aint,"cm^3")
print("This calculation is completed. Thank you！")
else:
print("Sorry, the options you entered are not available")
else:
print("Sorry, the options you entered are not available")