题解 | #取近似值#
取近似值
https://www.nowcoder.com/practice/3ab09737afb645cc82c35d56a5ce802a
from decimal import Decimal, ROUND_HALF_UP
num = float(input())
print(Decimal(num).quantize(Decimal('0'), rounding=ROUND_HALF_UP))
# 四舍五入4.5会变成4，详细信息看链接
# https://blog.csdn.net/xo3ylAF9kGs/article/details/127020005
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