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java - "new BigDecimal(13.3D)"结果不精确 "13.3000000000000007105.."?

Java的BigDecimal怎么会这么痛苦?Doubled=13.3D;BigDecimalbd1=newBigDecimal(d);BigDecimalbd2=newBigDecimal(String.valueOf(d));System.out.println("RESULT1:"+bd1.toString());System.out.println("RESULT2:"+bd2.toString());RESULT1:13.300000000000000710542735760100185871124267578125RESULT2:13.3是否存在需要结果1的情况?我知道Ja