这个函数在实际应用中很重要的,比如在计算快递单费的时候,超过某一个重量会自动向上进行取数 既然有UP,那么就一定有DOWN ROUNDDOWN函数用法和ROUNDUP函数一样,不相处在于一个是向下,一个是向上 当ROUNDDOWN函数第二个参数为0时,其功能就和INT取整函数相同了 Int( number )将数字向下舍入到最接近的整数,例: 与期...
既然有UP,那么就一定有DOWN ROUNDDOWN函数用法和ROUNDUP函数一样,不相处在于一个是向下,一个是向上 当ROUNDDOWN函数第二个参数为0时,其功能就和INT取整函数相同了 Int( number )将数字向下舍入到最接近的整数,例: 与期相反,CEILING函数是向上取整 CEILING(number, significance),ceiling英文是天花板的意思,函如其名...
Let's dive deeper into rounding down in Python! What is round down? So far, we've discussed "Round off," which is the most general type of approximation. "Round down," while similar, is not the same. As the name implies, Round Down reduce a number to the nearest lower integer. ...
rounded_down = round(num, -1) # 向下舍入 rounded_up = round(num, 1) # 向上舍入 print("Rounded down:", rounded_down) print("Rounded up:", rounded_up) 在这个示例中,10.4 向下舍入到最近的十位数是 10,向上舍入到最近的十位数是 20。 round() 函数的应用场景 round() 函数在 Python 中...
1-1、Python: AI检测代码解析 # 1.函数:round # 2.功能:用于返回数值经四舍五入规则处理后的值 # 3.语法:round(number[, ndigits=None]) # 4.参数: # 4-1、number:必须参数,表示需要进行四舍五入规则操作的数值 # 4-2、ndigits:可选参数,表示小数点后保留的位数,可为任意整数值(正数、零或负数)...
decimal.getcontext().rounding = decimal.ROUND_DOWN round(2.9) 返回2 总结: round函数是Python内置函数,用于将数字进行四舍五入。它的基本用法非常简单,只需要提供一个数字作为参数, 并可选地提供要保留的小数位数。round函数采用的是”四舍六入五成双”的舍入规则,返回值的类型与参数number的类型一致。在特殊...
Due to this, it is rounded down to2.67. Note: The behavior ofround()forfloatscan be surprising. Noticeround(2.675, 2)gives2.67instead of the expected2.68. This is not a bug: it's a result of the fact that most decimal fractions can't be represented exactly as a float. ...
Python2 中,round()的结果就是我们所理解的四舍五入,round(1.5)=2,round(2.5)=3。 Python3 中,round()有较大改动,round(1.5)=2,而round(2.5)仍然等于2,只有round(2.6)才等于3,这是为什么呢? 解决方案 原来Python2 的round()是四舍五入,而 Python3 的round()为四舍六入五成双,即高位为单数则进1...
For example: python print(round(2.5)) # Output: 2 print(round(3.5)) # Output: 4 In these cases, 2.5 is rounded down to 2 and 3.5 is rounded up to 4, because both 2 and 4 are even numbers. This rule ensures that the rounding operation is as fair as possible on average....
num =10.4rounded_down =round(num, -1)# 向下舍入rounded_up =round(num,1)# 向上舍入print("Rounded down:", rounded_down)print("Rounded up:", rounded_up) 在这个示例中,10.4 向下舍入到最近的十位数是 10,向上舍入到最近的十位数是 20。