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: result=float_to_two_decimal_pl
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...
Explanation:The code hereuses:.2finside the f-string to round and convert the float value to a string with two decimal places. Methods likeformat()andf-stringsreturn strings, not floats, which matters when doing further calculations. Method 4: Using the “Decimal” Module for Accurate Rounding...
Now, let’s round this value to two decimal places. We use the round() method. The round() method. lets you round a value to the nearest integer or the nearest decimal place. We also print the amount each friend has to contribute toward dinner to the console: rounded_value = round(...
decimal --- 十进制定点和浮点运算源码: Lib/decimal.pydecimal 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 “基于一个浮点模型,它是为人们设计的,并且必然具有最重要的指导原则 —— 计算机必须提供与人们在学校学习的算法相同的算法。”—— 摘自十进制算术...
It’s analogous to the format specifier in the print function. Simply use the formatting with%.2fto round down to two decimal places. Syntax: "%.2f" % number Python Django round to two decimal places view % formatting Django round to two decimal places view % formatting ...
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 specified number of decimal places. You can specify the number of decimal places to round by providing a value in the second argument. The example...
源码: Lib/decimal.pydecimal 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 “基于一个浮点模型,它是为人们设计的,并且必然具有最重要的指导原则 —— 计算机必须提供与人们在学校学习的算法相同的算法。”—— 摘自十进制算术规范。Decimal 数字的表示是完全精确的...
>>> num = 4.123956>>> f"num rounded to 2 decimal places = {num:.2f}"'num rounded to 2 decimal places = 4.12'如果不做任何指定，那么浮点数用最大精度 >>> print(f'{num}')4.123956 格式化百分比数 >>> total = 87>>> true_pos = 34>>> perc = true_pos / total>>> perc0....
31. Print numbers with sign (2 decimals). Write a Python program to print the following numbers up to 2 decimal places with a sign. Click me to see the sample solution 32. Print numbers without decimal places. Write a Python program to print the following positive and negative numbers wit...