import math
num = 11.4
print(math.ceil(num)) # 12 向上取整
print(math.floor(num)) # 11 向下取整
print(round(num)) # 11 四舍五入
import math
num = 11.4
print(math.ceil(num)) # 12 向上取整
print(math.floor(num)) # 11 向下取整
print(round(num)) # 11 四舍五入