关于vb.net:WBONG中的双重错误

WRONG SUM OF DOUBLES IN VB .NET

本问题已经有最佳答案，请猛点这里访问。

您好，我使用的是Microsoft VB 2012，有一个双精度求和的问题。

这个简单的代码复制了它：

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Dim result As Double = 0
Dim amount1 As Double = 81.83
Dim amount2 As Double = 50.0
result += amount1
result += amount2

结果等于131.829999998而不是131.83

事实上：

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Dim test1 As Double = 81.83 + 50.0 '(= 131.82999999998 wrong)
Dim test2 As Double = 81.83 + 50 '(= 131.82999999998 wrong)
Dim test3 As Double = 81.83 + 10 '(= 91.83 OK)
Dim test4 As Double = 81.82 + 50.0 '(= 131.82 OK)

有人能解释一下吗？

最好的问候戴维