30秒学会 Python 片段 – Initialize list with values

Initializes and fills a list with the specified value.

• Use a list comprehension and range() to generate a list of length equal to n, filled with the desired values.
• Omit val to use the default value of 0.

代码实现

def initialize_list_with_values(n, val = 0):
  return [val for x in range(n)]

使用样例

initialize_list_with_values(5, 2) # [2, 2, 2, 2, 2]

翻译自：https://www.30secondsofcode.org/python/s/initialize-list-with-values