Python double all numbers in a list

Document 对象参考手册Python3 Examples

In Python, we can quickly double all the numbers in a list using list comprehension. List comprehension is a concise and efficient way to create a new list.

Example

# Original list
numbers = [1, 2, 3, 4, 5]

# Use list comprehension to double each number in the list
doubled_numbers = [num * 2 for num in numbers]

# Output the result
print(doubled_numbers)

Code explanation:

  1. numbers = [1, 2, 3, 4, 5]: Define a list containing numbers.
  2. doubled_numbers = [num * 2 for num in numbers]: Use list comprehension to iterate overnumberseach element in the listnum, multiply it by 2, and generate a new listdoubled_numbers。
  3. print(doubled_numbers): Output the doubled list.

Output result:

[2, 4, 6, 8, 10]

Document 对象参考手册Python3 Examples

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