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...
这样,可以方便地在不同的输入下调用。 defround_to_two_decimal_places(num):""" 将给定数字四舍五入到两位小数。 :param num: 需要四舍五入的数字 :return: 四舍五入后的数字 """returnround(num,2)# 示例调用result=round_to_two_decimal_places(2.71828)print(result)# 输出结果为 2.72 1. 2. 3....
getcontext().rounding = getattr(decimal, 'ROUND_HALF_UP') # It sets the precision of the decimal module to 4. getcontext().prec = 5 # It converts the string '3.14159' to a Decimal object. decimal_ = Decimal('3.14159') print('四舍五入保留4位小数:{0}'.format(decimal_.quantize(Dec...
How to Round a number to 2 Decimal Places in Python The simplest method to round a number to two decimal places in Python is by using the built-in round() function, which is pretty straightforward. # Using the round() function to round a number to two decimal places rounded_number =...
round 函数：print(round(x,2))# 使用字符串格式化：x=3.14159265print("%.2f"%x)# 使用decimal...
Decimal.quantize()方法用于将Decimal数值按照给定的小数位数进行四舍五入或截断。如果希望强制保留两位小数,可以将小数位数设置为2,并选择四舍五入方式。 以下是一个示例代码: 代码语言:txt 复制 from decimal import Decimal, ROUND_HALF_UP def enforce_two_decimal_places(number): decimal_number = Decimal(str...
Discover three techniques to round up numbers in Python: using Python round up methods like math.ceil() from the math module, the decimal module, and NumPy.
decimal模块 3.数字的格式化输出 格式化输出单个数字的时候,可以使用内置的format()函数,比如: >>> x = 1234.56789 >>>#Two decimal places of accuracy>>> format(x,'0.2f')'1234.57'>>>#Right justified in 10 chars, one-digit accuracy>>> format(x,'>10.1f')'1234.6'>>>#Left justified>>> forma...
Write a Python program to round a list of floating-point numbers to two decimal places. Python Code Editor: Previous:Write a Python program to create a bytearray from a list. Next:Write a Python program to format a specified string limiting the length of a string. ...
np round function use cases in Python Let’s see some examples that will demonstrate the np.round() function in Python. 1. How to round in Python using the np.round() function Here, we are rounding elements of a NumPy array representing various measurements to two decimal places in Python...