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我在这里尝试使用 round 函数。有时它从 .5
向下舍入,有时向上舍入。那有什么问题呢?
源文件:
print("rounding up 0.5 is",round(.5))
print("rounding up 1.5 is",round(1.5))
print("rounding up 2.5 is",round(2.5))
print("rounding up 3.5 is",round(3.5))
输出:
rounding up 0.5 is 0
rounding up 1.5 is 2
rounding up 2.5 is 2
rounding up 3.5 is 4