Python浮点数转整数int、round、ceil、floor

# int 向0取整
int(-0.5)  # 0
int(0.5)  # 0


# round四舍五入，向偶取整
round(0.5)  # 0
round(0.9)  # 1
round(1.5)  # 2


import math

# math.floor 向下取整
math.floor(0.9)  # 0
math.floor(-0.9)  # -1


# math.ceil 向上取整
math.ceil(0.5)  # 1
math.ceil(-0.5)  # 0

参考 Python取整——向上取整、向下取整、四舍五入取整、向0取整