使用python 条件表达式:

[round(x) if x > 0.5 else x for x in lst] 

例如:

>>> [round(x) if x > 0.5 else x for x in lst] 
[54.0, 86.0, 0.3, 1.0, 1.0, 14.0, 0.2]

要准确地获得它，我们需要从round的输出构造一个int:

To get it exactly, we need to construct an int from the output of round:

>>> [int(round(x)) if x > 0.5 else x for x in lst] 
[54, 86, 0.3, 1, 1, 14, 0.2]