四舍五入保留小数点后几位
round()
>>> a = 156.598462
>>> round(a, 2)
156.6
>>> round(a, 1)
156.6
>>> round(a, 3)
156.598
>>> b = 2.96
>>> round(b, 1)
3.0
进制转换
https://blog.csdn.net/zhr1030635594/article/details/102954437
round()
>>> a = 156.598462
>>> round(a, 2)
156.6
>>> round(a, 1)
156.6
>>> round(a, 3)
156.598
>>> b = 2.96
>>> round(b, 1)
3.0
https://blog.csdn.net/zhr1030635594/article/details/102954437