The if statement in python

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sure! the `if` statement is a fundamental control structure in python that allows you to execute a block of code conditionally. this means that you can check whether a certain condition is `true` or `false`, and based on that, execute different blocks of code.
syntax of the `if` statement
the basic syntax of an `if` statement in python is as follows:
you can also add `elif` (short for "else if") and `else` statements to handle multiple conditions:
indentation
indentation is crucial in python as it defines the block of code associated with the `if` statement. make sure to use the same number of spaces (usually 4 spaces) or tabs consistently.
example
let’s look at an example to illustrate how the `if` statement works.
explanation of the example
1. **input**: the program prompts the user to enter their score (an integer between 0 and 100).
2. **conditions**:
- the first `if` checks if the score is greater than or equal to 90. if it is, the grade is set to 'a'.
- if the first condition is `false`, the `elif` checks if the score is greater than or equal to 80, and so on.
- if none of the conditions are `true`, the `else` block executes, assigning a grade of 'f'.
3. **output**: finally, the program prints out the corresponding grade.
more complex conditions
you can also combine conditions using logical operators like `and`, `or`, and `not`:
summary
- the `if` statement is used for conditional execution in python.
- you can use `elif` and `else` for multiple conditions.
- always remember to indent the code blocks.
- you can use logical operators to combine conditions.
this should give you a solid understanding of how to use the `if` statement in python! if you have any questions or need further examples, feel free to ask!
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