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...
1. 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(...
name = "Alice" age = 30 formatted_string = "My name is {} and I'm {} years old.".format(name, age) print(formatted_string) # 输出：My name is Alice and I'm 30 years old.示例2：使用位置参数：x = 5 y = 10 formatted_string = "The sum of {} and {} is {}."....
>>> 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...
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...
Python String: Exercise-31 with SolutionWrite a Python program to print the following numbers up to 2 decimal places with a sign.Sample Solution:Python Code:# Define a variable 'x' and assign it the value 3.1415926 (a positive floating-point number). x = 3.1415926 # Define a variable 'y...
A)正确 B)错误 答案:对 解析: 题卷 31/40 试卷科目: 189.[判断题]The Entry widgets get method retrieves either numeric or string data. A)正确 B)错误 答案:错 解析: 190.[判断题]使用PyMySQL建立Python与MySQL之间的连接时,默认以集合的方式返回查询结果 A)正确 B)错误 答案:错 解析: 191.[判断...
❮ 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 » ...
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: ...
In this example, thelocale.setlocale()function sets the locale to US English, andlocale.format_string()formats the number with commas. The output will be: 1,234,567,890 4. Using the Decimal Module TheDecimalmodule is useful for precise decimal arithmetic and can also be used to format numb...