Python 7 Levels, L5, Unit 43, Glance at Functions

No return, No parameter function:

def f1():
    print("Name:","David Smith")
    print("Total Score:",278)
f1()

No return, With parameters:

def f2(name,score):
    print("Name:",name)
    print("Total Score:",score)
f2("David Smith",278)
f2("John Doe",290)

List as Parameter:

def f3(name,scoreList):
    sum_score = 0
    print("Name",name)
    for i in scoreList:
        sum_score += i
    print("Total Score:",sum_score)
f3("David SMith",[98,88,90])
f3("John Doe",[77,79,95])

With return, With parameters:

def f5(name,score):
    sum_score = 0
    for i in score:
        sum_score += i
    print("Name:",name)
    return sum_score

result = f5("David Smith",[89,92,70])
print(result)

Scope of Variables:

def f5(name,score):
    global math#force to use global variable
    math = math - 50
    print(math)
    sum_score = 0
    for i in score:
        sum_score += i
    print(name)
    return sum_score

#print(sum_score)#We can not use variable inside a function from outside of the function
name1 = input("Please input student name:")
chinese = int(input("Please input "+name1+"'s French score:"))
math = int(input("Please input "+name1+"'s Math score:"))
english = int(input("Please input "+name1+"'s English score:"))

result = f5(name1,[chinese,math,english])
if  result >= 270:
    print("Excellent.")
else:
    print("Keep going.")

Homework:

def list_slice(list1):
    list2 = []#create an empty list
    for i in list1:
        if i%2 != 0:
            list2.append(i)
    return list2

result = list_slice([3,9,6,18,28,33,45,80,103])
print(result)