python - 如何在数组中重复字符串？

Question

我想重复len(non_current_assets)数组中的字符串。所以我尝试了：

["",  "totalAssets", "total_non_current_assets" * len(non_current_assets), "totalAssets"]

但它返回：

['',
 'totalAssets',
 'total_non_current_assetstotal_non_current_assetstotal_non_current_assetstotal_non_current_assetstotal_non_current_assets',
 'totalAssets']

标签： pythonarrayspython-3.xlistrepeat

Answer 1

放置你的strinside list，乘以，然后解包（使用*运算符），即：

non_current_assets = (1, 2, 3, 4, 5)  # so len(non_current_assets) == 5, might be anything as long as supports len
lst = ["",  "totalAssets", *["total_non_current_assets"] * len(non_current_assets), "totalAssets"]
print(lst)

输出：

['', 'totalAssets', 'total_non_current_assets', 'total_non_current_assets', 'total_non_current_assets', 'total_non_current_assets', 'total_non_current_assets', 'totalAssets']

（在 Python 3.7 中测试）