相关疑难解决方法(0)

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