``` import math #导入数学包 print(abs(-5)) print(abs(5))#求绝对值 print(max(1,20,10,202,40))#返回最大值 print(min(1,20,10,202,40))#返回最大值 print(pow(2,4))#2^4=2*2*2*2 print(math.sqrt(9)) #平方根 print(math.sin(3.1415926535))#sin ```