# File: ChapterControlFunc/menu3.py """ Compute circle. Enter radius?5 1.area 2.circ 0.quit Option? 2 circ= 31.400000000000002 Compute circle. Enter radius? 5 1.area 2.circ 0.quit Option? 0 Bye """ PI = 3.14 def area(r): return (r *r * PI) def circ(r): return (2 * r * PI) def main(): op = 1 while (op != 0): r = float(input("Compute circle. Enter radius?")) print("1.area\n2.circ\n0.quit") op = int(input("Option? " )) # option if (op == 1): print("area=",area(r)) elif (op == 2): print("circ=",circ(r)) elif (op == 0): print("Bye") else: print("Bad option") main()