我想格式化任意数量(整数或实数)转换为字符串重新presentation其中的总是的标志(正或负)和小数点分隔符,但没有尾随零。
I want to format any number (integer or real) to a string representation which always has a sign (positive or negative) and a decimal separator, but no trailing zeroes.
部分样本:
3.14 => +3.14
12.00 => +12.
-78.4 => -78.4
-3.00 => -3.
是否有可能使用默认的的ToString()
的实现,或者我需要写我自己?
Is it possible with one of the default ToString()
implementations, or do I need write this myself?
尝试是这样的:
double x = -12.43;
string xStr = x.ToString("+0.#####;-0.#####");
但是,这无助于显示尾随小数点。您可以处理这种情况下使用这种方法:
But this wouldn't help to display trailing decimal point. You can handle such situations using this method:
public static string MyToString(double x)
{
return x == Math.Floor(x)
? x.ToString("+0;-0;0") + CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator
: x.ToString("+0.####;-0.####");
}