python代码编程助手 在Python中,可以使用round()函数将数字x四舍五入到小数点后两位。以下是一个示例函数: python def round_to_two_decimals(x): """ 将数字x四舍五入到小数点后两位。 参数: x (float or int): 要四舍五入的数字。 返回: float: 四舍五入到小数点后两位的结果。 """ return round...
Python provides different methods for rounding numbers to two decimal places. The following examples provide detailed explanations of these techniques. Round to 2 decimal places using the round() function The round() function is Python’s built-in function for rounding float point numbers to the sp...
python2和python3的doc中都举了个相同的例子,原文是这么说的: Note Thebehavior of round()forfloats can be surprising:forexample,round(2.675,2)gives2.67instead of the expected2.68.Thisisnota bug:it’s a result of the fact that mostdecimalfractions can’t be represented exactlyasafloat.SeeFloatingP...
python2和python3的doc中都举了个相同的例子,原文是这么说的: NoteThebehavior of round()forfloats can be surprising:forexample,round(2.675,2)gives2.67instead of the expected2.68.Thisisnota bug:it’s a result of the fact that mostdecimalfractions can’t be represented exactlyasafloat.SeeFloatingPoi...
as number.NoteThe behavior of round() for floats can be surprising: for example, round(2.675, 2) gives 2.67 instead of the expected 2.68. This is not a bug: it’s a result of the fact that most decimal fractions can’t be represented exactly as a float....
python自带整除,python2中是/,3中是//,还有div函数。 字符串格式化可以做截断使用,例如 "%.2f" % value(保留两位小数并变成字符串……如果还想用浮点数请披上float()的外衣)。 当然,对浮点数精度要求如果很高的话,请用嘚瑟馍,不对不对,请用decimal模块。
Round Float to Decimals Write a Python program to round a floating-point number to a specified number of decimal places. Sample Solution: Round to specified Decimals using %f Function: Python Code: # Define the order amount as a floating-point number.order_amt=212.374# Print the total order...
The behavior ofround()for floats can be surprising: for example,round(2.675,2)gives2.67instead of the expected2.68. This is not a bug: it’s a result of the fact that most decimal fractions can’t be represented exactly as a float. SeeFloating Point Arithmetic: Issues and Limitationsfor ...
round(5.5):rounds the float5.5to6. Example 2: Round a number to the given number of decimal places print(round(2.665,2))print(round(2.675,2)) Run Code Output 2.67 2.67 When the decimal2.675is converted to a binary floating-point number, it's again replaced with a binary approximation, ...
无论是python3还是2都举了相同的例子, Note The behavior of round() for floats can be surprising: for example, round(2.675, 2) gives 2.67 instead of the expected 2.68. This is not a bug: it’s a result of the fact that most decimal fractions can’t be represented exactly as a float....