python计算之0.1+0.2不等于0.3的解决方案

#Author:jinhoward #Date:2020-10-04 A = 0.1 B = 0.2 print(A+B) #结果为：0.30000000000000004 #解决方案 import decimal C = decimal.Decimal('0.1') D = decimal.Decimal('0.2') print(C+D)