How do you start writing an if statement in Python? code example

Example 1: python if statement

usrinput = input(">> ")
if usrinput == "Hello":
  print("Hi")
elif usrinput == "Bye":
  print("Bye")
else:
  print("Okay...?")

Example 2: how to use an if statement in python

x = True

#Only one of the branches will ever execute
if x == True:
	print("x is true")
elif x == False:
	print("x is false")
else:
	print("x is neither true nor false")

Example 3: if statement python

if (condition):
   result
    
else:
   result

Example 4: if and elif

'''In this program, we input a number
check if the number is positive or
negative or zero and display
an appropriate message
This time we use nested if statement'''

num = float(input("Enter a number: "))
if num >= 0:
    if num == 0:
        print("Zero")
    else:
        print("Positive number")
else:
    print("Negative number")