66 lines
1,022 B
Markdown
66 lines
1,022 B
Markdown
# Flow Control if, elif, else
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{:.no_toc}
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<nav markdown="1" class="toc-class">
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* TOC
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{:toc}
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</nav>
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## The goal
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If I would have...
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Questions to [David Rotermund](mailto:davrot@uni-bremen.de)
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**Logic blocks need to be indented. Preferable with 4 spaces!**
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## [The if statement](https://docs.python.org/3/reference/compound_stmts.html#the-if-statement)
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```python
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if i == 1:
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print("if")
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elif i == 2:
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print("elif brach A")
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elif i == 3:
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print("elif brach B")
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else:
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print("else -- default")
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```
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## The full statement
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```python
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if_stmt ::= "if" assignment_expression ":" suite
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("elif" assignment_expression ":" suite)*
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["else" ":" suite]
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```
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## if, elif, else with lists
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```python
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A = 1
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if A in [0, 2, 4, 6, 8]:
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print("found")
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else:
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print("NOT found")
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```
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Output
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```python
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NOT found
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```
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```python
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A = 2
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if A in [0, 2, 4, 6, 8]:
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print("found")
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else:
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print("NOT found")
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```
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Output
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```python
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found
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```
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