Where can the break statement be used? Daniel tells you the effect of break in the loop statement

The break statement described in this article is like in the C language, breaking the minimum enclosing For or while loop。 Break StatementUsed to terminate Looping Statements, that is, the loop condition does not have a false condition or the sequence has not been fully recursive, it will Stop execution of loop statements。 Break StatementUsed in the while and for loops. If you use a nested loop, the break statement stops executing the deepest loop and starts executing the next line of code.

Break Statement The syntax :

Break

Flow chart:

Instance:

#! / usr / bin / python
#-*-coding: UTF-8-*-
  for letter in 'Python': # First instance
    if letter == 'h':
       break
    print 'current letter:', letter
      
   var = 10 # second instance
while var> 0:
    print 'Current variable value:', var
    var = var -1
    if var == 5: # exit loop when variable var equals 5
       break
  print "Good bye!" 

The result of the above instance execution:

Current Letter: P

Current Letter: Y

Current Letter: T

Current Variable Value: 10

Current Variable Value: 9

Current Variable Value: 8

Current Variable Value: 7

Current Variable Value: 6

Good bye!

Knowledge points related to this article:

What does the pass statement do in a python statement? On the usage of pass statement

python continue statement? The usage of the Python continue statement is detailed