Positive precision values round after the decimal point, while negative values round to the left of the decimal (tens, hundreds, etc.). Note that precision=0 returns a float (3.0) rather than an integer, unlike
# 1.函数:round # 2.功能:用于返回数值经四舍五入规则处理后的值 # 3.语法:round(number[, ndigits=None]) # 4.参数: # 4-1、number:必须参数,表示需要进行四舍五入规则操作的数值 # 4-2、ndigits:可选参数,表示小数点后保留的位数,可为任意整数值(正数、零或负数) # 4-2-1、若不提供ndigits...
而第3条规则是:当需要修约的数值恰好位于两个数中间时(即被修约的数字是5开头),Python的round()函数采用的这种策略叫做银行家舍入法(Banker's Rounding),也称为 “四舍六入五取偶” 法(也称为:“四舍六入五留双”、“偶数舍入法”),即在这种情况下,会舍入到最近的偶数。 2.3 为什么是“四舍六入五取...
Pythonround()Function ❮ Built-in Functions ExampleGet your own Python Server Round a number to only two decimals: x =round(5.76543,2) print(x) Try it Yourself » Definition and Usage Theround()function returns a floating point number that is a rounded version of the specified number, ...
python里面ro..round如果精确到整数的话就是四舍五入,但是保留几位小数时十分古怪,满足四舍六入,但是五的情况你根本无法预测,我用程序统计过,到底是否进一,几乎毫无规律
Python3.6内置函数——round 英文文档 (number[,ndigits]) Returnnumberrounded tondigitsprecision after the decimalpoint. Ifndigitsis omitted or is , it returns thenearest integer to its input. round() round(number[, ndigits])。 1、round函数用于对浮点数进行四舍五入求值,具体保留几位小数,以传入...
python中向下取整(round向下取整) 大家好,又见面了,我是你们的朋友全栈君。 from numpy\core_multiarray_umath.py np.floor() 代码语言:javascript 代码运行次数:0 运行 AI代码解释 deffloor(x,*args,**kwargs):# real signature unknown;NOTE:unreliably restored from __doc__""" floor(x, /, out=None...
When would you use the Python ROUND() function? The ROUND() function is, obviously, most commonly used when you need to round a number to the nearest integer. For example, if you want to calculate the average of a set of numbers, you might need to round the final value up or down ...
python中round的用法 简介 python标准库的解释及翻译round(number[, ndigits])Return the floating point value number rounded to ndigits digits after the decimal point. If ndigits is omitted, it returns the nearest integer to its input. Delegates to number.__round__(ndigits)...
Example 1: How round() works in Python? # for integers print(round(10)) # for floating point print(round(10.7)) # even choice print(round(5.5)) Run Code Output 10 11 6 Here, round(10):rounds the integer to10 round(10.7):rounds the float10.7to nearest integer,11. ...