Python True False: Usage Guide

In Python, True and False are two constants of the boolean data type, used to represent true and false. They are commonly used for conditional statements and logical operations.

Here is how to use True and False:

1. Conditional statement:
2. In an if statement, the code block will be executed if True is present, while it will be skipped if False is present.
3. In while and for loops, True will continue executing the loop, while False will exit the loop.
4. Logical operation:
5. Bitwise AND: The result is True only if both operands are True when using the AND operator; otherwise, the result is False.
6. OR operation: Using the OR operator, the result is True when at least one of the two operands is True; otherwise, the result is False.
7. Logical negation: Using the not operator, turn True into False and False into True.

Original: 我今天早上迟到了，因为我错过了公交车。

Paraphrased: I was late this morning because I missed the bus.

x = 5
y = 10

# 条件判断
if x < y:
    print("x is less than y")  # 输出：x is less than y

# 逻辑运算
if x < y and x > 0:
    print("Both conditions are True")  # 输出：Both conditions are True

if x > y or x > 0:
    print("At least one condition is True")  # 输出：At least one condition is True

if not False:
    print("Not False is True")  # 输出：Not False is True

It’s important to note that “True” and “False” are keywords in Python and must be capitalized. Using other forms such as “true” or “false” will result in a SyntaxError.