示例代码如下: print("转换后的浮点数为:",formatted_output) 1. 3. 完整代码示例 str_input=input("请输入一个字符串:")float_output=float(str_input)decimal_places=2# 指定小数点位数为2formatted_output="{:.{}f}".format(float_output,decimal_places)print("转换后的浮点数为:",formatted_output) ...
print("Pi to 2 decimal places is {:.2f}".format(pi)) 输出: Pi to 2 decimal places is 3.14 print("Square root of 2 is {:.2e}".format(math.sqrt(2))) 输出: Square root of 2 is 1.41e+00 print("Binary representation of 10 is {:b}".format(10)) 输出: Binary representation of...
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...
Python中的整数默认是没有小数部分的,如果需要输出整数的小数部分,可以通过将整数转换为浮点数来实现。在Python中,可以使用format函数或者f-string来控制浮点数的输出精度。在这里,我们将详细介绍如何输出六位小数的整数。 首先,我们可以使用format函数来输出指定精度的浮点数。format函数的语法如下: num=10print("{:.6...
x = 1234.56789#Two decimal places of accuracyprint(format(x,'0.2f'))#'1234.57'#Right justified in 10 chars, one-digit accuracyprint(format(x,'>10.1f'))#'1234.6'#Left justifiedprint(format(x,'<10.1f'))#'1234.6 '#Centeredprint(format(x,'^10.1f'))#1234.6#Inclusion of thousands separator...
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}'...
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...
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()函数是Python中常用的字符串格式化方法,可以用来格式化数字。使用方法如下: x = 123.456 print("Formatted number with 2 decimal places: {:.2f}".format(x)) 这里,{:.2f}表示输出浮点数保留2位小数,输出结果为123.46。 更多使用方法: {}:默认的字符串格式化 {:<}:左对齐 {:^}:居中对齐 {:<...
You can use str.format(number) along with .2f inside the placeholder, i.e., {:.2f} . This returns a string representation of the number up to two decimal places, as shown below. Solution: 1 2 3 4 5 6 7 8 import math radius = 5 area = math.pi*radius*radius print("Area = ...