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...
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...
下面是一个完整的示例,演示了如何将字符串转换为浮点数并保留2位小数。 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....
FORMAT(str,int,datetime) person = {'name': 'Jenn', 'age':23} 'I am {0[name]} and my age is {0[age]}'.format(person) for i in range(1,11): sentence = 'The value is {:01}'.format(i) print(sentence) # decimal places pi = 3.1415 sentence = 'Pi is equal to {:.2f}'...
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...
format()will format the string. name,age, andheightare values that replace the placeholders. "{:.2f}"is a format specifier that formats theheightvariable as a floating-point number with two decimal places. The output will be:Name: Alex, Age: 30, Height: 5.80 ...
🏆 BONUS – How to round each item in a list of floats to 2 decimal places in Python? 💡 Solution 1: Using a round() 💡 Solution 2: Using String formatting ❖ Conclusion ❖ Problem Formulation In this article, you will learn how to format a floating-point value and generate a...
string format 有两种方式:str.format( ) 和f-string。方式一 str.format( ) :print('{}'.format...
decimal_places 以数字存储的小数位数。 max_value 验证所提供的数字不大于这个值。 min_value 验证所提供的数字不小于这个值。 localize 设置为 True 以便基于当前区域启用输入和输出本地化。 这也将强制 coerce_to_string 为 True。 默认为 False。
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...