num = 12345.6789print("{:0>10.2f}".format(num)) # 输出格式为至少10位，小数点后保留2位，且右侧对齐的字符串 使用str.format()方法同时输出多个变量当你需要同时输出多个变量时，str.format()方法同样适用。你可以在字符串中预留多个{}占位符，然后依次将变量传入format()方法进行格式化输出。示例：name...
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. 6. 7. 8. 在上面的代码中,我们定义了一个名...
percentage = "{:.2f}%".format(value) # format the value to a string with 2 decimal places and append a "%" sign print(percentage) # output: 50.00% （2）使用f-string python value = 0.5 # 50% in decimal form percentage = f"{value:.2f}%" # format the value to a string with...
>>> 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...
2. 3. 使用f-string num=3.1415926formatted_num=f"{num:.2f}"print(formatted_num)# 输出 3.14 1. 2. 3. 全局保持两位数 有时候我们希望在整个程序中都保持数字的格式为两位小数。这时可以自定义一个函数或者类来实现全局保持两位数的功能。 defkeep_two_decimal_places(num):return"{:.2f}".format(num...
Learn how to round a number to 2 decimal places in Python for improved precision using techniques like round(), format(), and string formatting techniques.
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...
String objects have a built-in functionality to make format changes, which also include an additional way of concatenating strings. Let’s take a look at it: In the example above, I generated a new string based on the input values of two already-created variables by using thecurly brackets...
Format the price to be displayed as a number with two decimals: txt ="The price is {:.2f} dollars" Try it Yourself » Check out all formatting types in ourString format() Reference. Multiple Values If you want to use more values, just add more values to the format() method: ...
❮ 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 » ...