6-練習題目

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace WindowsFormsApp18

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

//textBox1.Text = "ABCDEF";

//textBox2.Text = "ABy4hhC1D2E3F";

label1.Text = "";

var charA = textBox1.Text.ToArray();

var charB = textBox2.Text.ToArray();

int index = 0;

for (int i = 0; i < charB.Length; i++)

{

if (index >= charA.Length || charA[index] != charB[i])

label1.Text += charB[i];

else

index++;

}

}

private void button2_Click(object sender, EventArgs e)

{

textBox3.Text = "AAAABBCCC";

string temp,result=""; //temp 存放 textbox3.text substring 的字

int counter=1; //用來計算重覆字的次數

temp = textBox3.Text.Substring(0, 1);

for(int i=1;i<textBox3.Text.Length;i++)

{

if (temp == textBox3.Text.Substring(i, 1)) //符合前一個字,累計 重覆字的次數

{

counter++;

}

else

{

result += counter.ToString() + temp; //若不符合前一個字, 重覆字的次數 重計

counter = 1;

}

temp = textBox3.Text.Substring(i, 1);

}

result += counter.ToString() + temp;

label2.Text = result; //將壓縮字串結果顯示在 label

}

private void button3_Click(object sender, EventArgs e)

{

label3.Text = "";

// 將兩個數處理成相同長度的字符串，短的小的數字前面補0

for (int i = 0; i < (textBox4.Text.Length > textBox5.Text.Length ? textBox4.Text.Length : textBox5.Text.Length); i++)

{

if (i >= textBox4.Text.Length)

{

textBox4.Text = "0" + textBox4.Text;

}

if (i >= textBox5.Text.Length)

{

textBox5.Text = "0" + textBox5.Text;

}

}

//分割為字元陣列

var charA = textBox4.Text.ToArray();

var charB = textBox5.Text.ToArray();

int[] result = new int[textBox4.Text.Length+1];

int k=0; //暫存器

int a, b;

for(int i=textBox4.Text.Length-1;i>=0;i--)

{

a = Convert.ToInt32(charA[i].ToString());

b = Convert.ToInt32(charB[i].ToString());

result[i+1] += (a+b+k)%10;

k = (a+b+k) / 10;

//result[i] += k;

}

result[0] = k;

//數字陣列轉入 label3.text

for(int i=0;i<result.Length;i++)

{

if(i!=0 | result[0] != 0)

label3.Text += result[i].ToString();

}

}

private void Form1_Load(object sender, EventArgs e)

{

/* char[] s1 = new char[5]; //

char[] s2 = new char[5];

int[] s3 = new int[100];*/

/*var charA = textBox4.Text.ToArray();

var charB = textBox5.Text.ToArray();*/

// 將兩個數處理成相同長度的字符串，短的小的數字前面補0

// textbox4 較長,則用textbox4 ,否則用 textbox5

/*

// 將兩個數處理成相同長度的字符串，短的小的數字前面補0

for (int i = 0; i < (a.Length > b.Length ? a.Length : b.Length); i++)

{

if (i >= a.Length)

one.Insert(i - a.Length, 0);

else

one.Add(int.Parse(a[i].ToString()));

if (i >= b.Length)

two.Insert(i - b.Length, 0);

else

two.Add(int.Parse(b[i].ToString()));

}

//Array.Resize(ref s, charA.Length + 1);

*/

}

}

}