formatted_number = "{:.2e}".format(number) print(formatted_number) # 输出:1.23e+04 四、使用正则表达式(可选) 如果需要对字符串进行更复杂的处理,可以结合正则表达式来控制格式。 import re def format_scientific_notation(number): formatted = "{:.2e}".format(number) # 使用正则表达式去除多余的零 ...
print(scientific_notation) 在上面的代码中,%.2e表示将浮点数转换为科学记数法,并保留两位小数。 二、利用format()函数 format()函数提供了一种更具可读性和灵活性的方式来格式化字符串。在科学记数法中,我们可以指定精度和格式。 number = 123456789.123456789 scientific_notation = "{:.2e}".format(number) pr...
numbers=[1.23e10,5.67e8,9.87654321e-5]fornumberinnumbers:# 使用 f-stringformatted_fstring=f"{number:.0f}"# 使用 format() 函数formatted_format="{:.0f}".format(number)# 使用 Decimalformatted_decimal=str(Decimal(str(number)))print(f"原始值:{number}\n f-string:{formatted_fstring}\n forma...
Scientific notation. For a given precision p, formats the number in scientific notation with the letter 'e' separating the coefficient from the exponent. The coefficient has one digit before and p digits after the decimal point, for a total of p + 1 significant digits. With no precision give...
Anytime a float is added to a number, the result is another float. Adding two integers together always results in an int.Note: PEP 8 recommends separating both operands from an operator with a space. Python can evaluate 1+1 just fine, but 1 + 1 is the preferred format because it’s ...
{:.1%}", 0.756)) # Completion: 75.6% # Hexadecimal print(format("Hex: 0x{:X}", 255)) # Hex: 0xFF # Thousands separator print(format("Population: {:,}", 1000000)) # Population: 1,000,000 # Scientific notation print(format("Distance: {:.2e} km", 149600000)) # Distance: 1.50...
Prints the number in scientific notation using the letter 'e' to indicate the exponent. 'E' Exponent notation. Same as 'e' except it converts the number to uppercase. 'f' Fixed point. Displays the number as a fixed-point number. 'F' Fixed point. Same as 'f' except it converts ...
in the sci notation sign = '-' if f < 0 else '' if exp > 0: float_string = '{}{}{}.0'.format(sign, digits, zero_padding) else: float_string = '{}0.{}{}'.format(sign, zero_padding, digits) return float_string ''' print(timeit(CODE_TO_TIME, setup=SETUP_1, number=...
("Height: %.1f"% height)# 输出: Height: 165.5# 使用 %x 格式化十六进制整数number =255print("Number in hex: %x"% number)# 输出: Number in hex: ff# 使用 %e 格式化指数value =123.456print("Value in scientific notation: %e"% value)# 输出: Value in scientific notation: 1.234560e+02# ...
In most cases, you’d use the .format() method for lazy interpolation. In this type of interpolation, you define a template string in some part of your code and then interpolate values in another part: Python >>> number_template = "The number is {}" >>> sum_template = "{0} ...