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...
python用format格式化数字 格式化输出单个数字的时候,可以使用内置的 format() 函数,比如: >>>x=1234.56789>>># Two decimal places of accuracy>>>format(x,'0.2f')'1234.57'>>># Right justified in 10 chars, one-digit accuracy>>>format(x,'>10.1f')' 1234.6'>>># Left justified>>>format(x,'<...
# 定义一个小数number=3.14159# 使用字符串格式化方法将小数保留两位小数formatted_number="{:.2f}".format(number)# 输出格式化后的数字print("Formatted Number (2 decimal places):",formatted_number)# 使用字符串格式化方法将小数保留四位小数formatted_number="{:.4f}".format(number)# 输出格式化后的数字prin...
1>>> x = 1234.5678923>>>#Two decimal places of accuracy4>>> format(x,'0.2f') #无空格,小数保留2位5'1234.57'67>>>#Right justified in 10 chars, one-digit accuracy8>>> format(x,'>10.1f') #数字输出靠右,总计长度为10,小数保留1位9'1234.6'1011>>>#Left justified12>>> format(x,'<10...
You can use the {:.2f} format formatting to display a number with two decimal places. Update code: import math result = math.floor(1.4) formatted_result = "{:.2f}".format(result) print(formatted_result) #1.00 Share Follow answered Nov 2, 2023 at 14:47 XMehdi01 1 Add a comment...
需求: 将数字格式化后输出,并控制数字的位数、对齐、千位分隔符和其他的细节 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 '...
fromdecimalimport* # Rounding the number 3.7829 to two decimal places. decimal_ = Decimal('3.7829').quantize(Decimal('0.00')) print('quantize设置保留两位小数后的结果:{0}'.format(decimal_)) # quantize设置保留两位小数后的结果:3.78 4.Decimal精度设置 ...
Why are there two? After that, I'm trying to make the program ask the user how many decimal places (d.p.) the user wants. How can I do this? Here is the current code: print("Welcome to the volume and surface area cylinder calculator powered by Python!") ...
format for number with three decimal places: 0.912 # 科学计数法表示 fstring = f'Exponent format for number: {number:e}' print(fstring) # Exponent format for number: 9.124325e-01 # 带货币符号 number = 123456.78921 fstring = f'Currency format for number with two decimal places: ${number:....
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...