如何对数字字符串的python列表进行排序

Question

我正在尝试对包含数字的字符串列表进行排序

a = ["1099.0","9049.0"]
a.sort()
a
['1099.0', '9049.0']

b = ["949.0","1099.0"]
b.sort()

b
['1099.0', '949.0']

a
['1099.0', '9049.0']

但是列表b是排序而不是列表a

Answer 1

您要基于float值（而不是字符串值）进行排序，因此请尝试：

>>> b = ["949.0","1099.0"]
>>> b.sort(key=float)
>>> b
['949.0', '1099.0']