import mathvalue = math.pirounded_value = round(value, 3)print(rounded_value) # 输出: 3.142 7. 结论 (Conclusion) round函数在Python中是一个非常有用的工具,它可以帮助我们在许多场景中进行四舍五入操作。无论是在财务计算、数据分析还是其他需要处理数字的领域,round都能提供便利。然而,我们也需要注意浮...
Python之数字的四舍五⼊（round（value,ndigits）函数）round(value, ndigits) 函数 print(round(1.23)) # 1 print(round(1.27)) # 1 print(round(1.23,1)) # 1.2 第⼆个参数保留的⼩数位数 print(round(1.27,1)) # 1.3 print(round(10.273,-1)) # 10.0 print(round(...
round(value, ndigits) 函数 print(round(1.23)) # 1 print(round(1.27)) # 1 print(round(1.23,1)) # 1.2 第二个参数保留的小数位数 print(round(1.27,1)) # 1.3 print(round(10.273,-1)) # 10.0 print(round(10273,-1)) # 10270 # 传给 round() 函数的 ndigits 参数可以是负数,这种情况下,...
round() Return Value Theround()function returns the nearest integer to the given number ifndigitsis not provided number rounded off to thendigitsdigits ifndigitsis provided Example 1: How round() works in Python? # for integers print(round(10)) # for floating point print(round(10.7)) # ...
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).For the built-in types...
# 示例交易数据transactions=[150.256,-75.555,50.99,-200.15,0.47,125.678]# 处理交易数据processed_transactions=[]fortransactionintransactions:abs_value=abs(transaction)# 获取绝对值rounded_value=round(abs_value,2)# 四舍五入到小数点后两位processed_transactions.append(rounded_value)# 打印结果print("处理后的...
Python >>> random.seed(100) >>> actual_value, rounded_value = 100, 100 >>> for _ in range(1_000_000): ... delta = random.uniform(-0.05, 0.05) ... actual_value = actual_value + delta ... rounded_value = round(rounded_value + delta, 3) ... >>> actual_value ...
you can use aMidpointRoundingvalue to determine the result of rounding. IfAwayFromZerois specified, -3 is returned because it is the nearest number away from zero with a precision of zero. IfToEvenis specified, -2 is returned because it is the nearest even number with a precision of zero....
对python四舍五入的解决方案 现象:一般的四舍五入操作都是使用内置的round方法 In [14]: round(2.675,2) Out[14]: 2.67 文档中这样解释的 The documentation for the built-in round() function says that it rounds to the nearest value, rounding ties away from zero. Since the decimal fraction 2.675...
Python round() function return value The np.round() function in Python returns an array of the same shape as the input array (arr), containing the rounded values. If the out parameter is used, the return is a reference to this array. ...