Python 7 Levels, L3, Unit 23, break and continue

Exercise 1:

a = ""
while a != "q" and a != "Q":
    a = input("Please input a letter(q or Q to quit)")
    print(a)
print("Loop ended")

Exercise 2:

print("5000 meters racing.")
for i in range(5):
    print("running....")
    print("Finished ",(i+1)*1000," meter")
    answer = input("Will you carry on?")
    if answer == "yes":
        print("Go on running")
    else:
        print("Give up early")
        break
print("Running end")

Exercise 3:

sum = 0
student_num = 0
while True:
    score = input("Please input its score(input q or Q to quit)")
    if score == "q" or score == "Q":
        print("Input over. Quit")
        break
    if int(score) < 0:
        print("Invalid input")
        continue
    student_num += 1
    sum += int(score)
else:
    print("quit")
print("Total input ",student_num," students")
print("The average score of the students is: ",sum/student_num)

Homework

import random as r
count = 0 #Used to record the valid guess times
for i in range(5):
    number = r.randint(0,10)
    print("Computer generate a random number 0~9")
    answer = int(input("Please guess it"))
    if answer < 0 or answer > 10:
        print("You guess is not correct. Try one more time.")
        continue
    count += 1 #guess times increase
    if answer == number:
        print("Congratulation. You are right.",end = "")
        break
    print("Your guess wrong.")
else:
    print("Sorry, good luck next time,",end = "")
print("You guess valid times are: ",count)