039 break statements tủ tài liệu training

Python break, continue and pass statementsIn this lesson, we are going to learn to use break, continue and pass statements to alter the flow of a loop.. break statement The break stateme

Python break, continue and pass statements

In this lesson, we are going to learn to use break, continue and pass statements to alter the flow of a loop

break statement

The break statement terminates the loop containing it It’s really useful statement and commonly used by the programmers

Here is the syntax of break statement:

break

Let’s look at an example that uses the break statement in a for loop

In [1]: #The use of 'break' statements with "for" loops

number = 0

for number in range(10):

number = number + 1

if number == 5:

break # break here print('Number is ', number) print("Outside of the loop")

Number is 1

Number is 2

Number is 3

Number is 4

Outside of the loop

In [2]: number = 0

for number in range(10):

number = number + 1

if number == 5:

#break pass print('Number is ' + str(number)) print("Outside of the loop")

In [3]: #We know this loop from the "while" loops lesson

i=1

while (i < 20):

print("Number is ",i)

i +=1

In [5]: #The use of 'break' statements with "while" loops

i=1

while (i < 10):

print("Number is ", i)

if (i == 5):

break

i +=1

Number is 1

Number is 2

Number is 3

Number is 4

Number is 5

Number is 6

Number is 7

Number is 8

Number is 9

Number is 10

Outside of the loop

Number is 1

Number is 2

Number is 3

Number is 4

Number is 5

Number is 6

Number is 7

Number is 8

Number is 9

Number is 10

Number is 11

Number is 12

Number is 13

Number is 14

Number is 15

Number is 16

Number is 17

Number is 18

Number is 19

Number is 1

Number is 2

Number is 3

Number is 4

Number is 5

In [6]: while True: # How can we stop an infinite loop?

name = input("Please enter your name:(You can press 'q' button to exit the p rogram!):")

if (name == "q"):

print("The program is terminated ") break #break here

print(name)

This is the end of break statement

Let's look at the continue statement

In [ ]:

Please enter your name:(You can press 'q' button to exit the program!):John John

Please enter your name:(You can press 'q' button to exit the program!):Alex Alex

Please enter your name:(You can press 'q' button to exit the program!):Omer Omer

Please enter your name:(You can press 'q' button to exit the program!):q

The program is terminated