def function(a):
if a == '1':
print ('1a')
elif a == '2':
print ('2a')
else:
print ('3a')
# if,elif,else in statement.
m=1
n=2
p=3
if n<m:
print('n is greater than m')#(n>m,hence not satisfied)
elif p!=m+n:
print('p is not equal to sum of m and n')#(p==m+n, hence not satisfied)
else:
print('not satisfied')
output:
not satisfied
................................................................................
#if else elif
if(9<0) and (0<-9):
print('hel')
elif (9>0) or False:
print('good')
else:
print('bad')
___________________________________________________________________________
num = 20
if num > 30:
print("big")
elif num == 30:
print("same")
else:
print("small")
#output: small
>>> x = int(input("Please enter an integer: "))
Please enter an integer: 42
>>> if x < 0:
... x = 0
... print('Negative changed to zero')
... elif x == 0:
... print('Zero')
... elif x == 1:
... print('Single')
... else:
... print('More')
...
More
age = 20
if age < 4: ticket_price = 0
elif age < 18: ticket_price = 10
else: ticket_price = 15
print(ticket_price)
>>> a = 5
>>> if a > 5:
... a = a + 1
... elif a == 5:
... a = a + 1000
... else:
... a = a - 1
...
>>> a
1005
#best example of elif loop
a = 33
b = 33
if b > a:
print("b is greater than a")
elif a == b:
print("a and b are equal")
var_one = input("Give me a number: ")
var_one = int(var_one)
var_two = input("Give me another number: ")
var_two = int(var_two)
if var_one > var_two:
print(f"First number, {var_one} is bigger")
elif var_one < var_two:
print(f"Second number, {var_two} is bigger")
else:
print(f"Both numbers are the same : {var_one}")
2 7 1
boolean1 = (1 != 1)
boolean2 = (2 + 2 == 5)
boolean3 = (1 == 1)
if (boolean1):
print("Boolean one is true")
elif (boolean2):
print("Boolean two is true")
else:
print("Boolean three may, or may not be true")
x = 20
if x == 20:
print("x = 20")
elif x == 30:
print ("x = 30")
else:
print("x is not 20 or 30")