4 接着输入:“TWOPLACES = decimal.Decimal(10) ** -2”,点击Enter键。5 使用 def 关键字定义一个 div 函数,函数体中调用Decimal类型的 quantize() 方法。6 再输入:“divX = div(decimal.Decimal('155.72'), decimal.Decimal('4.17'))”,点击Enter键。7 然后输入:“print(...
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) ...
# 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...
getcontext().rounding = getattr(decimal,'ROUND_HALF_UP') # It sets the precision of the decimal module to 4. getcontext().prec =5 # It converts the string '3.14159' to a Decimal object. decimal_ = Decimal('3.14159') print('四舍五入保留4位小数:{0}'.format(decimal_.quantize(Decimal...
= 3.14159 decimal_places = count_decimal_places(num) print(f"小数点后位数为: {decimal_places}...
num = 3.141592653589793 decimal_places = 3 result = truncate_float(num, decimal_places) print(result) # 输出:3.141 在上述示例中,我们将浮点数3.141592653589793截断为3位小数,得到的结果为3.141。 腾讯云相关产品推荐:若您在云计算领域中需要进行浮点数截断操作,您可以考虑使用腾讯云的云函数(SCF)。云函...
from math import pi fraser = str(pi) length_of_pi = [] number_of_places = raw_input("Enter the number of decimal places you want to see: ") for number_of_places in fraser: length_of_pi.append(str(number_of_places)) print "".join(length_of_pi) 无论出于何种原因,它都会自动打印...
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 '...
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...
print("including an intger works with %%d like this:%d"% 10)print("An integer converted to a float with %%f:%f"% 5)print("A normal float with %%f:%f"%1.2345)print("A readlly large number with %%E:%E"% 6.789E10)print("Controlling the number of decimal places shown:%.02f"% 25.1...