Decimal＃scaleb()：scaleb()是一个Decimal类方法，该方法将第二个值与其exp相加后返回第一个操作数。
用法：Decimal.scaleb()
参数：十进制值
返回：将第二个值与其exp相加后的第一个操作数。
代码1：scaleb()方法示例
# Python Program explaining
# scaleb() method
# loading decimal library
from decimal import *
# Initializing a decimal value
a = Decimal(1)
b = Decimal(0)
# printing Decimal values
print ("Decimal value a : ", a)
print ("Decimal value b : ", b)
# Using Decimal.scaleb() method
print ("\n\nDecimal a with scaleb() method : ", a.scaleb(b))
print ("Decimal b with scaleb() method : ", b.scaleb(b))
输出：
Decimal value a : 1
Decimal value b : 0
Decimal a with scaleb() method : 1
Decimal b with scaleb() method : 0
代码2：scaleb()方法的示例
# Python Program explaining
# scaleb() method
# loading decimal library
from decimal import *
# Initializing a decimal value
a = Decimal(3)
b = Decimal(2)
# printing Decimal values
print ("Decimal value a : ", a)
print ("Decimal value b : ", b)
# Using Decimal.scaleb() method
print ("\n\nDecimal a with scaleb() method : ", a.scaleb(b))
print ("Decimal b with scaleb() method : ", b.scaleb(b))
输出：
Decimal value a : 3
Decimal value b : 2
Decimal a with scaleb() method : 3E+2
Decimal b with scaleb() method : 2E+2
