2.1
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
def test_sum(): tup=("1","2","3","6","5") sum=0 for i in tup: sum=float(i)+sum return sum def test11(): while True: string=raw_input(">>") if string=="1": sum=test_sum() print "sum:",sum elif string=="2": sum=test_sum() avg=sum/5 print"avg:",avg elif string=="x": exit() else: print"Please enter 1 or 2 or x" test11()
2.12-2.13
2.15
b:
def test15(): num1=raw_input("first num:") num2=raw_input("second num:") num3=raw_input("third num:") num1=float(num1) num2=float(num2) num3=float(num3) if num1>num2: if num1>num3: firstnum=num1 if num2>num3: seconnum=num2 thirdnum=num3 else: seconnum=num3 thirdnum=num2 else: firstnum=num3 seconnum=num1 thirdnum=num2 else: if num2>num3: firstnum=num2 if num1>num3: seconnum=num1 thirdnum=num3 else: seconnum=num3 thirdnum=num1 else: firstnum=num3 seconnum=num2 thirdnum=num1 print firstnum,seconnum,thirdnum test15()