vb.net 将字符串转换为十进制到字符串并返回到十进制
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Convert string to decimal to string and back to decimal
提问by Flo
I want to convert a string to a decimal then to a string and then to a decimal again.
我想将字符串转换为小数，然后再转换为字符串，然后再转换为小数。
I tried:
我试过：
Dim s As String = "0.7655"
CDec(sDec).ToString("0.00") 'results in: 7653,00
CDec(sDec).ToString 'results in: 7648
CDec(sDec).ToString("N") 'results in: 7.653,00
So none of these work!
所以这些都不起作用！
Is there no easy function to just convert the exact decimal to its string representation again? Seems like too much work for such a simple task!
有没有简单的函数可以再次将精确的十进制转换为其字符串表示？对于这样一个简单的任务来说，似乎工作太多了！
Preferably without formatting the string, because in that case I seem to know beforehand how many characters the resulting string should have. After converting it to string, I also want to convert it back to a decimal again.
最好不要格式化字符串，因为在这种情况下，我似乎事先知道结果字符串应该有多少个字符。将其转换为字符串后，我还想再次将其转换回十进制。
回答by Meta-Knight
In your current culture the decimal separator might be a comma instead of a dot. Using the invariant culture will always use the dot:
在您当前的文化中，小数点分隔符可能是逗号而不是点。使用不变文化将始终使用点：
Dim s As String = "0.7655"
Dim decValue As Decimal = Decimal.Parse(s, System.Globalization.CultureInfo.InvariantCulture)
Console.WriteLine(decValue.ToString())
回答by Jonathan
You should be able to acheive your answer by using the Parse method.
您应该能够使用 Parse 方法获得答案。
Dim s As String = "0.7655"
Dim c As Decimal = Nothing
c = Decimal.Parse(s)
Console.WriteLine(c)
You can then use the ToStringmethod to convert back to a string.
然后，您可以使用该ToString方法将其转换回字符串。
