每次按下按钮时，如何将 n 个字符从字符串的前面连续移动到末尾? [英] How can move n characters from front of the string to the end continuously every time I press the button?

问题描述

每次按下按钮时，我都试图将字符串的第一个字符移到末尾.

I'm trying to move the first char of the string to the end every time I press the button.

我的逻辑似乎只在我按下按钮后一次又一次地显示第一个输出.

My logic seems to only display the first output again and again after I press the button.

string input = "";
string manipulated = "";
int initial;

input = txtInput.Text;

if (txtInput.Text == String.Empty)
{
    MessageBox.Show("Textbox is empty, please input a string.");
}
else 
{
        for (initial = 1; initial < input.Length; initial++)
        {
            manipulated += input[initial];
        }
        manipulated += input[0];
        lblOutput.Text = manipulated.ToString();
        input = manipulated;
        manipulated = "";
}

例如如果我在文本框中输入1234"并按下按钮，我的输出应该是2341"，然后在我再次按下按钮后，输出应该移动到3412"......等

E.g. if I enter "1234" in the text box and press the button, my output should be "2341", then after I hit the button again, the output should move to "3412" .. etc.

推荐答案

这是 Basics String 操作的一个简单示例:

This is a simple example of Basics String operations:

private void ManipulateBtn_Click(object sender, EventArgs e)
    {
        string input = InputTxt.Text; // Read the text from you Textbox in Windos form
        if (input == string.Empty)
        {
            return;
        }
        string temp = input[0].ToString(); // Create a temp for the first char(toString) from you input
        input = input.Remove(0,1); // Remove (from you input) At Index 0 (the idex from fist char in string) 1 time) 
        input += temp; //add the firs item from you input at the end of string
        InputTxt.Text = input; // prin the result in the Textbox back.
    }

您可以看到示例 SimpleStringOperation

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