import math #导入模块
nym = 11.5456788999
print(math.fabs(num)) #绝对值
print(math.floor(num)) #向下取整
print(math.ceil(num)) #向上取整
print(round(num)) #四舍五入到整数
print(round(num, 2)) #四舍五入到指定小数位数
print(math.pow(2, 4)) #次幂

import math #导入模块
nym = 11.5456788999
print(math.fabs(num)) #绝对值
print(math.floor(num)) #向下取整
print(math.ceil(num)) #向上取整
print(round(num)) #四舍五入到整数
print(round(num, 2)) #四舍五入到指定小数位数
print(math.pow(2, 4)) #次幂