在Python中,我们可以使用float函数来实现这一步骤: result=float(result_str)returnresult 1. 2. 这里我们使用了float函数将结果字符串result_str转换为浮点数,并将其返回。 三、完整代码 下面是完整的代码实现: deffloat_to_two_decimal_places(number):number_str=str(number)result_str="{:.2f}".format(numb...
下面是一个完整的示例,将字符串转换为两位小数数字: defconvert_to_two_decimal_places(num_str):num_float=float(num_str)formatted_num="{:.2f}".format(num_float)returnfloat(formatted_num)num_str="3.14159"result=convert_to_two_decimal_places(num_str)print(result)# 输出:3.14 1. 2. 3. 4. 5...
一旦您计算出小数点后 39 位的 amount_per_day,您就可以使用内置函数“round”简单地删除它们 圆形的工作原理如下:round(float_num, num_of_decimals) 所以在你的情况下你会这样做amount_per_day = round(amount_per_day, 2) 我还建议您将 print 语句中添加的所有令人讨厌的字符串替换为 f 字符串,如下所...
How to use string formatting methods to format a float value to two decimal places? Using the round function. Using the Decimal object and the quantize method. How to round each item in a list of floats to 2 decimal places? With that, we come to the end of this comprehensive guide. I...
1.浮点数转Decimal 使用Decimal.from_float函数将随便一个float类型的小数转换成Decimal的数据类型,结果float类型数据就显出原形了。 # It imports the Decimal class from the decimal module. importdecimal fromdecimalimportDecimal # It converts the float 10.245 to a Decimal object. ...
Theceil()andfloor()functions of themathlibrary are used to round a number downward or upward to its closest integer, respectively. We can use these functions to create custom methods to round up and down a given float value to two decimal places. ...
python中 decimal不能直接应用于float数据 今天将程序部署到linux服务器上,出现很奇怪的现象。 在windows上运行正常的decimal,到了linux环境下不能正常运行,报出下面的错误。 代码为: income = get_dashboard_revenue(Project_id) TWOPLACES = Decimal(10)** -2...
how do you get a float variable to round the decimal to two decimal places in python3 I'm having a bit of trouble with this and I have no idea what to do pythonpython3 9th Jan 2019, 7:43 PM Austin 4 Answers Sort by: Votes Answer ...
How do you round a value to two decimal places in Python? That’s an excellent question. Luckily for you, Python offers a few functions that let you round numbers. Rounding numbers to two decimal places is common. Money only uses two decimal places; you do not want to process a ...
decimal 模块为快速正确舍入的十进制浮点运算提供支持。 它提供了 float 数据类型以外的几个优点: Decimal 类型的“设计是基于考虑人类习惯的浮点数模型,并且因此具有以下最高指导原则 —— 计算机必须提供与人们在学校所学习的算术相一致的算术。”—— 摘自 decimal 算术规范描述。