def format_number(num, decimal_places): 定义一个函数format_number,接收一个数字num和希望的小数位数decimal_places。 return f"{num:.{decimal_places}f}": 利用 Python 的 f-string 语法来格式化数字,确保数字有指定的小数位数。 步骤3: 使用字符串格式化实现四舍五入 在调用format_number函数时,您可以传入...
The round function in Python rounds a number to a specific decimal place and returns a floating-point number rounded as per our specifications. It takes the following arguments: Any number The number of decimal places (optional) The number of decimal places is set to zero by default. So the...
For example, the number 2.5 rounded to the nearest whole number is 3. The number 1.64 rounded to one decimal place is 1.6.Now open up an interpreter session and round 2.5 to the nearest whole number using Python’s built-in round() function:...
print(Decimal('1.5093').quantize(Decimal('1.00'))) # 1.51 1. 2. 3. 4. 5. 6. 强制四舍五入 使用decimal from decimal import Decimal, ROUND_HALF_UP def round(number, ndigits=None): """强制四舍五入""" exp = Decimal('1.{}'.format(ndigits * '0')) if ndigits else Decimal('1...
【python】基础学习(十)round()&Decimal()&hamcrest()&向上取整&向下取整 浮点数处理 print(round(3.447444,2))>>3.45 fromdecimalimport Decimal print(Decimal('0.3') + Decimal('0.9'))>>1.2 importmath#向上取整math.ceil( x )importmath#向下取整math.floor( x )...
number is the floating point number needed rounding places is the number of decimal places to round to with '0' as the default which will actually return our interger. Otherwise, a floating point will be returned to the given decimal place. Note: Use trueround_precision() if true precision...
Finally, let’s tackle those numbers after the dots and only show the two decimal digits. Instead of printing the pure temp_cel variable, you can put it into an f-string with curly braces, and then inside the f-string, right behind the temp_cel…
how do you get a float variable to round the decimal to two decimal places in python3 I'm having a bit of trouble with this and I have no idea what to do pythonpython3 9th Jan 2019, 7:43 PM Austin 4 Answers Sort by: Votes Answer ...
Decimal('0.00') >>> n.quantize(Decimal('0.01'), rounding=ROUND_UP) # 保证最小是0.01 Decimal('0.01') 要处理更精确的分数精度,可以使用fractions模块的Fraction类。 更多Python相关信息见Python 专题页面 https://www.linuxidc.com/topicnews.aspx?tid=17 ...
import decimal #Can be rounded to 13.48 or 13.49 rounded = round(13.485, 2) print(rounded) Let’s see the output for this program: The number in program can be rounded to 13.48 or 13.49. By default, theround(...)function rounds down. This can be changed as well: ...