格式化数字以在大于千时显示逗号 [英] Format a number to display a comma when larger than a thousand

问题描述

我正在Visual Basic.net中编写一些代码，并且有一个问题.

I am writing some code in Visual Basic.net and have a question.

如果我有一个大于1000的长整数，如何将该值格式化为1000(带逗号)并将其存储在字符串中?

If I have a long number, that is larger than 1000, how can I format this value to be 1,000 (with a comma) and for this to be stored in a string?

例如

1234将存储为1,234 12345将被存储为12,345 123456将被存储为123,456

1234 will be stored as 1,234 12345 will be stored as 12,345 123456 will be stored as 123,456

这是通过TryParse语句完成的吗?

Is this done with a TryParse statement?

我可以帮些忙吗?

推荐答案

看看一般用途:

Dim dblValue As Double = -12445.6789
Console.WriteLine(dblValue.ToString("N", CultureInfo.InvariantCulture))
' Displays -12,445.68

如果仅使用整数，则执行以下操作:

If you are only using integers then the following:

Dim numberString As String = 1234.ToString("N0")

将显示numberString = "1,234"，因为"N0"格式不会在小数点后添加任何数字.

Will show numberString = "1,234" as the "N0" format will not add any figures after a decimal point.

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