formatted_string = f"Value with two decimal places: {value:.2f}" print(formatted_string) # 输出: "Value with two decimal places: 1234.57" formatted_string = f"Value with comma as thousand separator: {value:,.2f}" print(formatted_string) # 输出: "Value with comma as thousand separator: ...
%.2f" % pi print(formatted_pi_percent) # 输出: Pi rounded to 2 decimal places: 3.14 # 使用格式控制标记组合 formatted_pi_combined = f"Pi with thousand separator and 2 decimal places: {pi:,.2f}" print(formatted_pi_combined) # 输出: Pi with thousand separator and 2 decimal places: 3.1...
# Formatting large numbers population = 1234567 revenue = 1234567.89 # Using comma as thousand separator print(f"Population: {population:,}") print(f"Revenue: ${revenue:,.2f}") # Using underscore as thousand separator print(f"Population: {population:_}") print(f"Revenue: ${revenue:_.2f}...
Perform a string formatting operation. The string on which this method is called can contain literal text or replacement fields delimited by braces {}. Each replacement field contains either the numeric index of a positional argument, or the name of a keyword argument. Returns a copy of the st...
Use a comma as a thousand separator: price =59000 txt = f"The price is {price:,} dollars" print(txt) Try it Yourself » Here is a list of all the formatting types. String format() Before Python 3.6 we used theformat()method to format strings. ...
String interpolation in Python involves embedding variables and expressions into strings. You create an f-string in Python by prepending a string literal with an f or F and using curly braces to include variables or expressions. You can use variables in Python’s .format() method by placing ...
'{} was born in {country}'.format('Jack',country='China')'Jack was born in China'# format格式化输出'decimal{:.2f},percentage{:.1%},thousandSeparator{:,}'.format(12.367,0.237,12354)'decimal12.37,percentage23.7%,thousandSeparator12,354'# format_map传入map对象格式化字符串'{name} was born ...
print(f"with comma as thousand separator: {large_number:,}") # 输出结果: with comma as thousand separator: 1,000,000 总结📝 Python的格式说明符是一种非常强大的工具,可以帮助你控制字符串插值中数值和其他数据类型的显示方式。通过合理使用这些格式说明符,你可以使你的代码输出更加专业和易读。0...
def locale_comma_to_float(string_value): # Set US locale (for comma as thousand separator) locale.setlocale(locale.LC_ALL, 'en_US.UTF-8') # Parse the string and convert to float return locale.atof(string_value) # Example usage
This pattern is useful when you want to provide multiple string representations of an object that can be selected at formatting time. Best PracticesUse f-strings for simple cases: Prefer f-strings in Python 3.6+ for readability Implement __format__: For custom objects that need formatting ...