琴弦位置 [英] String position

问题描述

我有2个文本框和1个按钮，我在文本框中输入了类似"pen"的字符串，还在其他文本框中输入了相关的文本，例如"p".如果单击按钮，则我希望输出为3表示位置"n".
有人帮我怎么写代码吗?

Hi,

I have 2 textboxes and 1 button, I enter some sting in textbox like "pen" and also enter the related text in other textbox like "p". If I click the button then I want the output is 3 means location of "n".
Anybody help me how to write the code please?

推荐答案

尝试一下:

Try this:

string _text = text1.box;
int _location = text.IndexOf(@"n");

_location将包含"n"的位置.

_location will contain the location of ''n''.

字符串str = TextBox1.Text;
int position = str.IndexOf(TextBox2.Text)+1;
Label1.Text = position.ToString();

使用它，您将获得我使用+1的结果，因为索引从0开始.

string str = TextBox1.Text;
int position = str.IndexOf(TextBox2.Text)+1;
Label1.Text = position.ToString();

use it u will get the result i used +1 as indexing starts from 0.

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