同样是保留了两位小数,使用quantize函数能完成同样的效果,默认结果也是经过了四舍五入的计算,若是想要固定小数位数使用此方法比较靠谱。 # It imports all the names from the decimal module into the current namespace.fromdecimalimport*# Rounding the number 3.7829 to two decimal places.decimal_ = Decimal('...
In Python, we can represent decimal values using the float datatype. The decimal point divides the integer from the fractional part. The maximum value a float object can have is 1.8 x 10^308.In this article, we will discuss how to count the decimal places in Python. We will take a ...
Learn how to round a number to 2 decimal places in Python for improved precision using techniques like round(), format(), and string formatting techniques.
from decimal import * # Rounding the number 3.7829 to two decimal places. decimal_ = Decimal('3.7829').quantize(Decimal('0.00')) print('quantize设置保留两位小数后的结果:{0}'.format(decimal_)) # quantize设置保留两位小数后的结果:3.78 Decimal精度设置 这里还是做一个结果为无限小数的除法,分别使用...
pop if sign: build(trailneg) for i in range(places): build(next() if digits else '0') if places: build(dp) if not digits: build('0') i = 0 while digits: build(next()) i += 1 if i == 3 and digits: i = 0 build(sep) build(curr) build(neg if sign else pos) return...
pop if sign: build(trailneg) for i in range(places): build(next() if digits else '0') if places: build(dp) if not digits: build('0') i = 0 while digits: build(next()) i += 1 if i == 3 and digits: i = 0 build(sep) build(curr) build(neg if sign else pos) return...
python django - DecimalField最大位数，小数位数解释max_digits必须等于或大于decimal_places。如果你有...
pop if sign: build(trailneg) for i in range(places): build(next() if digits else '0') if places: build(dp) if not digits: build('0') i = 0 while digits: build(next()) i += 1 if i == 3 and digits: i = 0 build(sep) build(curr) build(neg if sign else pos) return...
>>>Decimal('3.214').quantize(TWOPLACES) Decimal('3.21') >>># Validate that a number does not exceed two places >>>Decimal('3.21').quantize(TWOPLACES, context=Context(traps=[Inexact])) Decimal('3.21') >>>Decimal('3.214').quantize(TWOPLACES, context=Context(traps=[Inexact])) ...
pop if sign: build(trailneg) for i in range(places): build(next() if digits else '0') if places: build(dp) if not digits: build('0') i = 0 while digits: build(next()) i += 1 if i == 3 and digits: i = 0 build(sep) build(curr) build(neg if sign else pos) return...