https://afrusrsc.github.io/tags/c%23/ Recent content in C# on 慢步道人 Hugo -- 0.125.7 zh 2017-2025 Jesse Jin Wed, 01 Jan 2020 22:37:24 +0800 https://afrusrsc.github.io/posts/program/misc/float_precision_calc/ Wed, 01 Jan 2020 22:37:24 +0800 https://afrusrsc.github.io/posts/program/misc/float_precision_calc/ 从其它平台迁移而来 人到中年，总是不免生出些危机感，长年使用Delphi，心中自是不踏实，闲来便看两眼java，不想却发现个从未注意过的小问题。 java 1 2 3 4 5 double a = 1 / 10; //0.0 double b = 1.0 / 10; //0.1 double c = 1 / 10.0; //0.1 double d = 1 - 9.0 / 10; //0.09999999999999998 double e = 1 - 9 / 10; //1.0 Delphi 1 2 3 4 5 a := 1 / 10; //0.1 b := 1.0 / 10; //0.1 c := 1 / 10.