pi = 3.141592653589793 formatted_string = "Pi is approximately {:.2f} or {:.5f} decimal places.".format(pi, pi) print(formatted_string) # 输出：Pi is approximately 3.14 or 3.14159 decimal places.注意事项 在使用format函数时，有一些技巧和注意事项可以帮助你更有效地使用它。了解不同的...
>>> ip_address = "127.0.0.1"# pylint complains if we use the methods below>>> "http://%s:8000/" % ip_address'http://127.0.0.1:8000/'>>> "http://{}:8000/".format(ip_address)'http://127.0.0.1:8000/'# Replace it with a f-string>>> f"http://{ip_address}:8000...
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...
Supports the format mini-language✅✅⛔️ Supports conversion types✅✅✅ Supports conversion flags✅✅✅ F-strings are the clear winner in terms of readability. However, they don’t allow you to do lazy interpolation. There’s no way to use an f-string to create a reusable...
defconvert_to_float_with_2_decimal_places(s):num=float(s)formatted_num="{:.2f}".format(num)returnformatted_num# 测试s="3.14159"result=convert_to_float_with_2_decimal_places(s)print(result) 1. 2. 3. 4. 5. 6. 7. 8. 9.
string format 有两种方式：str.format( ) 和 f-string。方式一 str.format( ) ：print('{}'....
percentage = f"{value:.2f}%" # format the value to a string with 2 decimal places and append a "%" sign print(percentage) # output: 50.00% 在Python中，我们可以使用多种方法来输出百分比。最常用的方法是使用print()函数和格式化字符串。从Python 3.6开始，推荐使用f-strings(格式化字符串字面...
The conversion type refers to the the single-character type code that Python uses. The codes that we’ll be using here aresfor string,dto display decimal integers (10-base), andfwhich we’ll use to display floats with decimal places. You can read more about theFormat-Specification Mini-Lan...
❮ String Methods ExampleGet your own Python Server 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 » ...
现在推荐的方式是：name='wtf'print(f'name:{name}')比 format 更简单一些。百分号这种的，纯属清朝...