round函数只能对浮点数(写出来的1.2不是真的1.2,见上文)进行ROUND HALF EVEN舍入,decimal模块的接口就是对真的小数进行舍入: >>> Decimal('1.265').quantize(Decimal('.00'), rounding=ROUND_HALF_EVEN) Decimal('1.26') >>> Decimal('1.275').quantize(Decimal('.00'), rounding=ROUND_HALF_EVEN) Deci...
ROUND_HALF_DOWN (to nearest with ties going towards zero), ROUND_HALF_EVEN (to nearest with ties going to nearest even integer), ROUND_HALF_UP (to nearest with ties going awayfromzero),orROUND_UP (awayfromzero). ROUND_05UP (awayfromzeroiflast digit after rounding towards zero would have bee...
print(round(10.7)) # even choice print(round(5.5)) Run Code Output 10 11 6 Here, round(10):rounds the integer to10 round(10.7):rounds the float10.7to nearest integer,11. round(5.5):rounds the float5.5to6. Example 2: Round a number to the given number of decimal places print(round(...
ROUND_HALF_DOWN (to nearest with ties going towards zero), ROUND_HALF_EVEN (to nearest with ties going to nearest even integer), ROUND_HALF_UP (to nearest with ties going awayfromzero),orROUND_UP (awayfromzero). ROUND_05UP (awayfromzeroiflast digit after rounding towards zero would have bee...
Note that the behavior of round() when exactly halfway between two numbers is to round to the nearest even number, which is known as "bankers rounding." This is done to avoid systematic bias in the rounding results. For example: python print(round(2.5)) # Output: 2 print(round(3.5))...
1. Divide it by the unit to which it is to be rounded 2. Round it to the nearest whole number, unless it ends in exactly .5 3. If it ends in exactly .5, then round towards the nearestevenwhole number 4. Multiply it by the unit to which it is to be rounded ...
Round to nearest, ties to even – rounds to the nearest value; if the number falls midway it ...
ROUND_DOWN (towards zero),ROUND_FLOOR(towards -Infinity),ROUND_HALF_DOWN(to nearest with ties going towards zero),ROUND_HALF_EVEN(to nearest with ties going to nearest even integer), ROUND_HALF_UP (to nearest with ties going away from zero), or ...
(towards Infinity), ROUND_DOWN (towards zero), ROUND_FLOOR (towards -Infinity), ROUND_HALF_DOWN (to nearest with ties going towards zero), ROUND_HALF_EVEN (to nearest with ties going to nearest even integer), ROUND_HALF_UP (to nearest with ties going away from zero), or ROUND_UP (...
Round towards zero. decimal.ROUND_FLOOR Round towards -Infinity. decimal.ROUND_HALF_DOWN Round to nearest with ties going towards zero. decimal.ROUND_HALF_EVEN Round to nearest with ties going to nearest even integer. decimal.ROUND_HALF_UP ...