隨心所欲

這大概是我讀大學有史以來，很認真的在準備課業吧～～！！
忘記當學生那種拼命想要高分的感覺，
那感覺好像只有在國小才發生過吧～

之後國中、高中、大學，
失去了昔日的同學，
就在也沒有一次想要衝刺的感覺，

最近的幾次，
大概是上次期中考考１分，期末考全班第二高的微算機，
和這次重修的這門吧！

想想大學被當的科目，
好像都敗在出席的說！

連這次重修也一樣，
少到兩次到課就陷入分數不夠的危機，
害我不得不拿書苦讀用分數向老師證明一切，

重修被當狠幹的，
我不要三修＞＂＜


---------------
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
public partial class Form1 : Form

{
public int[] A = new int[10];
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
Random r = new Random();
for (int i = 0; i <= 9; i++)
{
A[i] = r.Next(1, 51);
}

}

private void button1_Click(object sender, EventArgs e)
{
string T = "";
for (int i = 0; i <= 9; i++)
{
T = T + string.Format("{0:D2}", A[i])+",";
}
label1.Text = T;
}

private void button2_Click(object sender, EventArgs e)
{
int X = A[0];
for (int i = 1; i <= 9; i++)
{
if(X












A[i])
{
X = A[i];
}
}
label3.Text = X.ToString();
}

private void button4_Click(object sender, EventArgs e)
{
string X = "";
for (int i = 0; i <= 9; i++)
{
if (A[i]%2==1)
{
X = X + string.Format("{0:D2}", A[i] + ",");
}
}
label4.Text = X;
}

private void button5_Click(object sender, EventArgs e)
{
int X = 0;
for (int i = 0; i <= 9; i++)
{
if (A[i] % 2 == 1)
{
X = X + 1;
}
}
label5.Text = X.ToString();
}

private void button6_Click(object sender, EventArgs e)
{
string X = "";
for (int i = 0; i <= 9; i++)
{
if (A[i] % 2 == 0)
{
X = X + string.Format("{0:D2}", A[i] + ",");
}
}
label6.Text = X;
}

private void button7_Click(object sender, EventArgs e)
{
int X = 0;
for (int i = 0; i <= 9; i++)
{
if (A[i] % 2 == 0)
{
X = X + 1;
}
}
label7.Text = X.ToString();
}

private void button8_Click(object sender, EventArgs e)
{
int X = 0;
for (int i = 1; i <= 9; i++)
{
X = X + A[i];
}
label8.Text = X.ToString();
}

private void button9_Click(object sender, EventArgs e)
{
string 所有質數 = "";
for (int i = 0; i <= 9; i++)
{
bool 是否為質數 = true;
for (int j = 2; j < A[i]; j++)
{
if (A[i] % j == 0)
{
是否為質數 = false;
break;
}
}

if (A[i] < 2)
{
是否為質數 = false;
}

if (是否為質數 == true)
{
所有質數 = 所有質數 + string.Format("{0:D2}", A[i])+",";
}

}
label9.Text = 所有質數.ToString();


}

private void button11_Click(object sender, EventArgs e)
{
int n;
n = int.Parse(textBox1.Text);

bool x = true;
for (int i = 2; i <= n - 1; i++)
{
if (n % i == 0)
{
x = false;
break;
}
}
if (x == true)
{
MessageBox.Show(n.ToString() + "是質數");
}
else
{
MessageBox.Show(n.ToString() + "不是質數");

}
}

private void button10_Click(object sender, EventArgs e)
{
int 質數個數 = 0;
for (int i = 0; i <= 9; i++)
{
bool 是否為質數 = true;
for (int j = 2; j < A[i]; j++)
{
if (A[i] % j == 0)
{
是否為質數 = false;
break;
}
}

if (A[i] < 2)
{
是否為質數 = false;
}

if (是否為質數 == true)
{
質數個數 = 質數個數 + 1;
}

}
label10.Text = 質數個數.ToString();
}
}
}