方法1:使用format函数 python number = 3.14159 formatted_number = "{:.2f}".format(number) print(formatted_number) # 输出: 3.14 ### 方法2:使用`f-string`(Python 3.6+) ```python filename="fstring_two_decimal_places.py" number = 3.14159 formatted_number = f"{number:.2f}" print(formatted...
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...
decimal_places = 2:设置希望保留的小数位数为2位。 for row in matrix:遍历矩阵的每一行。 formatted_row = [format_number(num, decimal_places) for num in row]:对每个数字调用format_number函数进行格式化。 print(" ".join(formatted_row)):将格式化后的数字组合并打印。 第四步:调试和测试代码 在实际...
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...
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...
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...
The format() function can handle various data types, including floats, integers, and strings. The code below prints 345.69. # Example number to be rounded number = 345.68776 # Using format() to round to 2 decimal places formatted_number = "{:.2f}".format(number) print(formatted_number) ...
decimal places: {:.2f}".format(pi) print(formatted_string) # 输出: Pi to two decimal places: 3.14 # 数字右对齐,总宽度为10个字符,并用0填充空位 number = 42 formatted_string = "Right aligned number: {:>10d}".format(number) print(formatted_string) # 输出: Right aligned number: 42 ``...
("Hexadecimal: %#x"%x)# 输出'Hexadecimal: 0xa'# 字符串格式化拓展示例print("Value of x is {}, My name is {}, I am {} years old".format(x,name,age))#使用format()方法进行字符串格式化print(f"Value of x is {x}, My name is {name}, I am {age} years old")# 使用f-string...