Python programs use if commands and conditions to make decisions.
Indentation (4 spaces) is used to show what actions have to be taken.
if
Do something or nothing:
1 2 3 4 | #if temperature < 17: print('It is too cold')# |
if-else
Do one thing or another:
1 2 3 4 5 6 | #if speed > 60: print('That is over the national speed limit')else: print('That is inside the national speed limit') # |
if-elif-else:
Do one of several things:
01 02 03 04 05 06 07 08 09 10 11 12 | #if mark >= 70: grade = 'A'elif mark >=60: grade = 'B'elif mark >=50: grade = 'C'elif mark >=40: grade = "D"else: grade = "F"# |
