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_places(3.1415926)print(result) 1. 2. 这里我们调用了float_...
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...
格式化输出单个数字的时候,可以使用内置的 format() 函数,比如: 1 >>> x = 1234.56789 2 3 >>> # Two decimal places of accuracy 4 >>> format(x, '0.2f') #无空格,小数保留2位 5 '1234.57' 6 7 >>> # Right justified in 10 chars, one-digit accuracy 8 >>> format(x, '>10.1f') #...
What is the simplest way to round a number to two decimal places in Python? The simplest way to round a number to two decimal places is by using the built-in round() function. Why does a number round to the nearest integer when using the round() function? How is the format() functi...
2. Using the format() Function 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...
with a colon to separate it from the field name that we saw before. After thecolon, we write “.2f”. This means we’re going to format afloat numberand that there should betwo digits after the decimal dot. So no matter what the price is, our function always prints two decimals. ...
format for number with three decimal places: 0.912 # 科学计数法表示 fstring = f'Exponent format for number: {number:e}' print(fstring) # Exponent format for number: 9.124325e-01 # 带货币符号 number = 123456.78921 fstring = f'Currency format for number with two decimal places: ${number:....
Insert the price inside the placeholder, the price should be in fixed point, two-decimal format: txt ="For only {price:.2f} dollars!" print(txt.format(price =49)) Try it Yourself » Definition and Usage Theformat()method formats the specified value(s) and insert them inside the string...
Floating-Point and Decimal NumbersSo far, you’ve only used rational numbers to create fractions. After all, the two-argument version of the Fraction constructor requires that both numbers are Rational instances. However, that’s not the case with the single-argument constructor, which will happil...
Code point in U+0000 format. Character centralized in a str of length 6. Show re_dig if character matches the r'\d' regex. Show isdig if char.isdigit() is True. Show isnum if char.isnumeric() is True. Numeric value formated with width 5 and 2 decimal places. Unicode character nam...