rounded_number = np.around(number, 2) print(rounded_number) # 输出: 3.14 六、使用自定义函数 除了以上几种方法,还可以通过编写自定义函数来实现保留两位小数的功能。这种方法可以根据具体需求进行灵活调整。 例如: def round_to_two_places(number): return round(number, 2) number = 3.14159 rounded_numbe...
defround_to_two_decimal_places(number):return'{:.2f}'.format(number) 1. 2. 以上代码定义了一个名为round_to_two_decimal_places的函数,它接受一个数字作为输入,并返回保留两位有效数字并自动补0的结果。 示例 假设我们有一个数值列表[0.123, 1.234, 12.345, 123.456, 1234.567],我们希望将每个数值保留两...
>>> ip_address = "127.0.0.1"# pylint complains if we use the methods below>>> "http://%s:8000/" % ip_address'http://127.0.0.1:8000/'>>> "http://{}:8000/".format(ip_address)'http://127.0.0.1:8000/'# Replace it with a f-string>>> f"http://{ip_address}:8000...
deffloat_to_two_decimal_places(number):number_str=str(number)result_str="{:.2f}".format(number)result=float(result_str)returnresult 1. 2. 3. 4. 5. 四、示例使用 我们可以通过以下代码来测试我们的函数: AI检测代码解析 result=float_to_two_decimal_places(3.1415926)print(result) 1. 2. 这里...
Learn how to round a number to 2 decimal places in Python for improved precision using techniques like round(), format(), and string formatting techniques.
Now, let me show you a few methods of how to format number with commas and 2 decimal places in Python. 1. Using f-strings (Python 3.6+) The first method to format a number with commas and 2 decimal places in Python is by using the f-strings method. ...
with a colon to separate it from the field name that we saw before. After thecolon, we write “.2f”. This means we’re going to format afloat numberand that there should betwo digits after the decimal dot. So no matter what the price is, our function always prints two decimals. ...
It is assumed that the array elements need to be rounded to a specific number of decimal places. Here is a demonstration on how to accomplish this: # sample array to work with In [21]: arr = np.random.randn(4) In [22]: arr ...
在Python中,我们可以使用内置的round()函数来截断浮点数后面的小数。不进行舍入的方法是将小数部分与整数部分相加后取整数部分,可以使用math模块中的floor()函数或者int()函数来实现...
In this tutorial, you’ll learn how to:Create integers and floating-point numbers Round numbers to a given number of decimal places Format and display numbers in stringsLet’s get started!Note: This tutorial is adapted from the chapter “Numbers and Math” in Python Basics: A Practical ...