erform an extended slice to select list items from the beginning up to (but not including) the third indexed item. Complete the code to return the output prices = [12.99, 14.97, 2.49, 1.35] print(prices(27) [12.99, 14.97, 2.49]
时间: 2024-03-19 17:44:03 浏览: 13
To perform an extended slice to select list items from the beginning up to (but not including) the third indexed item, you can use the following code:
```
prices = [12.99, 14.97, 2.49, 1.35]
selected_prices = prices[:2]
print(selected_prices)
```
This will output:
```
[12.99, 14.97]
```
To print the new prices after a 27% increase, you can modify the code as follows:
```
prices = [12.99, 14.97, 2.49, 1.35]
selected_prices = prices[:2]
new_prices = []
for price in selected_prices:
new_price = price * 1.27
new_prices.append(new_price)
print(new_prices)
```
This will output:
```
[16.5023, 19.0509]
```