Conditional statements और operators

डेवलपर्स के लिए Python परिचय

Jasmin Ludolf

Senior Data Science Content Developer

Booleans

# Boolean variable
the_truth = True
print(the_truth)

True

तुलना करने के लिए उपयोग होते हैं

Operators

Comparison operators
- प्रतीक या प्रतीकों के संयोजन
- मानों की तुलना करने के लिए उपयोग
जाँचें कि दो चीजें बराबर हैं या नहीं
- ==

समानता की जाँच

# Compare if 2 is equal to 3
2 == 3

False

# Check that 2 is not equal to 3
2 != 3

True

आम उपयोग: लॉगिन विवरण जाँचना

संख्यात्मक तुलना ऑपरेटर्स

# Is 5 less than 7?
5 < 7

True

# Is 5 less than or equal to 7?
5 <= 7

True

# Is 5 greater than 7?
5 > 7

False

# Is 5 greater or equal to 7?
5 >= 7

False

अन्य तुलना

# Is James greater than Brian
"James" > "Brian"

True

स्ट्रिंग्स का मूल्यांकन वर्णानुक्रम में होता है

Conditional statements

अगर if शर्त पूरी हो, तो क्रिया करें, वरना छोड़ दें

# Check pasta quantities
required_quantity = 500
pasta_quantity = 200


# Compare pasta quantities
if pasta_quantity >= required_quantity

Conditional statements

अगर if शर्त पूरी हो, तो क्रिया करें, वरना छोड़ दें

# Check pasta quantities
required_quantity = 500
pasta_quantity = 200


# Compare pasta quantities
if pasta_quantity >= required_quantity:

Conditional statements

अगर if शर्त पूरी हो, तो क्रिया करें, वरना छोड़ दें

# Check pasta quantities
required_quantity = 500
pasta_quantity = 200


# Compare pasta quantities
if pasta_quantity >= required_quantity:

    print("You have enough pasta!")

इंडेंटेशन

# Check pasta quantities
required_quantity = 500
pasta_quantity = 200


# Compare pasta quantities
if pasta_quantity >= required_quantity:

print("You have enough pasta!") # This line is not indented

    print("You have enough pasta!")
    ^
IndentationError: expected an indented block

Elif statement

# Check pasta quantities
required_quantity = 500
pasta_quantity = 200

# Compare pasta quantities
if pasta_quantity >= required_quantity:

    print("You have enough pasta!")

elif pasta_quantity >= 300:
    print("Nearly enough pasta. Try a smaller portion.")

आप जितने चाहें उतने elif keywords उपयोग कर सकते हैं!

Else statement

# Check pasta quantities
required_quantity = 500
pasta_quantity = 200

# Compare pasta quantities
if pasta_quantity >= required_quantity:

    print("You have enough pasta!")

elif pasta_quantity >= 300:
    print("Nearly enough pasta. Try a smaller portion.")

# Otherwise...
else:
    print("Not enough pasta.")

Not enough pasta.

Comparison operators cheat sheet

Operator	Function
`==`	Equal to
`!=`	Not equal to
`>`	More than
`>=`	More than or equal to
`<`	Less than
`<=`	Less than or equal to

Keyword	Function	Use
`if`	If condition is met	First in the workflow
`elif`	Else check if condition is met	After `if`
`else`	Else perform this action	After `elif`

अभ्यास करते हैं!

डेवलपर्स के लिए Python परिचय