分隔两个数字. [英] Seperating two numbers.

问题描述

我正在从VB.NET转到C#的过程中，我想知道是否有人可以帮助我解决我遇到的问题.
基本上，我是从RSS提要中下载一些XML坐标，但是我不知道如何分隔两个不同的数字，并将它们放入称为lat.Text和lon.Text的分隔文本框中.如果它们的长度相同，我会知道该怎么做，但事实并非如此，这会让我头疼.

这是数据的样本.
51.103 1.800
50.400 0.000
50.3 0.2
50.3 -0.3

Hi,
I am in the process of moving over from VB.NET to C# and I was wondering if anyone could help me with a problem I have been having.
Basically I am downloading some XML coordinates from an RSS feed but I don''t know how I would seperate the 2 different numbers and put them into seperated text boxes called, lat.Text and lon.Text. I would know how to do it if they were the same length but as they are not it''s causing me a headache.

Here is a sampele of the data.
51.103 1.800
50.400 0.000
50.3 0.2
50.3 -0.3

推荐答案

使用String.Split().

例如，如果您在"51.103 1.800"上调用此代码:

Use String.Split().

As an example, if you called this on "51.103 1.800" :

string data = "51.103 1.800";
string[] lines = data.Split();

现在lines 将有2个项目，lines[0]将为"51.103"，而lines[1]将为"1.800".

*更新*
----------
[感谢约翰]

请注意，我如何不将任何参数传递给Split.发生的事情是它将根据任何空白字符(制表符，空格，多个空格，换行符等)进行拆分.

如果您特别想在一个空格上分割，请按照以下步骤操作:

Now lines would have 2 items, lines[0] would be "51.103" and lines[1] would be "1.800".

*Update*
----------
[Thanks to John]

Note how I don''t pass any parameter to Split. What happens is that it will split based on any white space character (tab, space, multiple spaces, newline etc.)

If you specifically want to split on a single space, do it as follows:

data.Split(' ');

*另一个更新*
--------------------
[感谢GenJerDan]

如果要确保返回的数组不包含任何空字符串，则可以使用带有StringSplitOptions 参数的重载.

示例:

*Another Update *
--------------------
[Thanks to GenJerDan]

If you want to be sure that the returned array won''t have any empty strings, you can use an overload that takes a StringSplitOptions argument.

Example:

string[] lines = data.Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries);

您不能在重载中利用params功能，因此您需要对第一个参数使用实际的数组创建语法.

You cannot take advantage of the params feature in this overload so you need to use actual array creation syntax for the first parameter.

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