字符串到整数 [英] String to int

问题描述

您好，我可以在C#中将字符串转换为整数变量吗?如果可以，请告诉我.我给了端口号< port> 10000< port>.在xml文件中.我想从xml读取此数字并分配给int变量，以便可以将其传递给IPEndPoint()以进行客户端/服务器通信.无论我从xml读取的内容都是作为字符串检索的，我都尝试过ConvertToInt( )，但仍然无法获取.您能否解释一下原因?

Hi
can i convert a string to integer variable in C#?If so can you please tell me.I have given the port number <port>10000<port> in an xml file .I want to read this number from xml and assign to int variable so that it can be passed to the IPEndPoint() for client/server commnuication.Whatever i read from xml is retrieved as string.I tried with ConvertToInt() but still im not getting.Can you please explain me the reason?

推荐答案

int结果；

int.TryParse("10000"，出结果);

int result;

int.TryParse("10000", out result);

musefan给了您完美的答案.请注意，如果不能将数字转换为int，您将得到零.

我有一个扩展方法，在处理text/xml等文件以简化内容时会用到.

musefan has given you the perfect answer. Just be aware that if the number can''t be converted to an int you will get zero.

I have an extension method that I use when working with text/xml etc files to simplify stuff.

public static class ExtensionMethods<br />{<br />    /// <span class="code-SummaryComment"><summary></span><br />    /// Converts a string to an integer.<br />    /// <span class="code-SummaryComment"></summary></span><br />    /// <span class="code-SummaryComment"><param name="value">The string to convert.</param></span><br />    /// <span class="code-SummaryComment"><returns>The integer value of the string if valid; otherwise, zero.</returns></span><br />    public static Int32 ToInt32(this string value)<br />    {<br />        int result;<br />        Int32.TryParse(value, out result);<br />        return result;<br />    }<br />}

现在我可以使用类似

int intFromFile = stringFromFile.ToInt32();

这篇关于字符串到整数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！