f"{num:.{decimal_places}f}":使用 f-string 格式化字符串,控制输出的小数位数。 第三步:逐行打印矩阵,调用格式化函数 现在我们将遍历矩阵并逐行打印数字,调用上面定义的格式化函数。 decimal_places=2# 设置保留的小数位数print("\n格式化后的矩阵:")forrowinmatrix:formatted_row=[format_number(num,decimal_plac...
rounded_number=round(number,num_decimal_places) 1. 其中,number是需要保留小数位数的数字,num_decimal_places是需要保留的小数位数。 下面是一个具体的例子,展示如何使用round函数保留一位小数输出: AI检测代码解析 number=7.123456rounded_number=round(number,1)print(rounded_number) 1. 2. 3. 运行上述代码,输...
Theformat()function is another versatile way to format numbers with commas and two decimal places: number = 1234567.8910 formatted_number = "{:,.2f}".format(number) print(formatted_number) Similar to f-strings, the format specifier:,adds commas, and.2fensures two decimal places. The output w...
output is printed>>> f"{c!r}"'Color(r=123, g=32, b=255)'# Same as the default>>> f"{c!s}"'A RGB color'格式化浮点数 >>> 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...
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 Introduction to Python 3. If you’d prefer a...
You can also specify text alignment using the greater than operator:>. For example, the expression{:>3.2f}would align the text three spaces to the right, as well as specify a float number with two decimal places. Conclusion In this article, I included an extensive guide of string data typ...
Learn how to round a number to 2 decimal places in Python for improved precision using techniques like round(), format(), and string formatting techniques.
double_precision : int, default 10 The number of decimal places to use when encoding floating point values. force_ascii : bool, default True Force encoded string to be ASCII. date_unit : str, default 'ms' (milliseconds) The time unit to encode to, governs timestamp and ISO8601 precisi...
FFloating-point decimal format gFloating-point format GFloating-point format cSingle character (accepts integer or single character string) rString as per callingrepr() sString as per callingstr() aString as per callingascii() %A percentage character (%) in the result if no argument is conver...
number = 0.9124325345 # 百分比 fstring = f'Percentage format for number with two decimal places: {number:.2%}' print(fstring) # Percentage format for number with two decimal places: 91.24% # 保留小数点后3位 fstring = f'Fixed point format for number with three decimal places: {number:.3f...