经典Console案例

/*
下面的示例演示 WindowLeft、WindowTop、WindowWidth、WindowHeight、BufferWidth、BufferHeight 和 CursorVisible 属性以及

SetWindowPosition、SetBufferSize 和 ReadKey 方法。该示例在屏幕缓冲区中根据屏幕缓冲区的宽度绘制一个网格模式。然后，该示例在

按下向上键、向下键、向左键或向右键这四个控制台键时相应移动控制台窗口。网格模式有助于查看控制台窗口相对于屏幕缓冲区的移动。
*/

// This example demonstrates the Console.WindowLeft and
// Console.WindowTop properties.
using System;
using System.Text;
using System.IO;
//
class Sample
{
public static int saveBufferWidth;
public static int saveBufferHeight;
public static int saveWindowHeight;
public static int saveWindowWidth;
public static bool saveCursorVisible;
//
public static void Main()
{
string m1 = "1) Press the cursor keys to move the console window.\n" +
"2) Press any key to begin. When you're finished...\n" +
"3) Press the Escape key to quit.";
string g1 = "+----";
string g2 = "| ";
string grid1;
string grid2;
StringBuilder sbG1 = new StringBuilder();
StringBuilder sbG2 = new StringBuilder();
ConsoleKeyInfo cki;
int y;
//
try
{
saveBufferWidth = Console.BufferWidth;
saveBufferHeight = Console.BufferHeight;
saveWindowHeight = Console.WindowHeight;
saveWindowWidth = Console.WindowWidth;
saveCursorVisible = Console.CursorVisible;
//
Console.Clear();
Console.WriteLine(m1);
Console.ReadKey(true);

// Set the smallest possible window size before setting the buffer size.
Console.SetWindowSize(1, 1);
Console.SetBufferSize(80, 80);
Console.SetWindowSize(40, 20);

// Create grid lines to fit the buffer. (The buffer width is 80, but
// this same technique could be used with an arbitrary buffer width.)
for (y = 0; y < Console.BufferWidth/g1.Length; y++)
{
sbG1.Append(g1);
sbG2.Append(g2);
}
sbG1.Append(g1, 0, Console.BufferWidth%g1.Length);
sbG2.Append(g2, 0, Console.BufferWidth%g2.Length);
grid1 = sbG1.ToString();
grid2 = sbG2.ToString();

Console.CursorVisible = false;
Console.Clear();
for (y = 0; y < Console.BufferHeight-1; y++)
{
if (y%3 == 0)
Console.Write(grid1);
else
Console.Write(grid2);
}

Console.SetWindowPosition(0, 0);
do
{
cki = Console.ReadKey(true);
switch (cki.Key)
{
case ConsoleKey.LeftArrow:
if (Console.WindowLeft > 0)
Console.SetWindowPosition(
Console.WindowLeft-1, Console.WindowTop);
break;
case ConsoleKey.UpArrow:
if (Console.WindowTop > 0)
Console.SetWindowPosition(
Console.WindowLeft, Console.WindowTop-1);
break;
case ConsoleKey.RightArrow:
if (Console.WindowLeft < (Console.BufferWidth-Console.WindowWidth))
Console.SetWindowPosition(
Console.WindowLeft+1, Console.WindowTop);
break;
case ConsoleKey.DownArrow:
if (Console.WindowTop < (Console.BufferHeight-Console.WindowHeight))
Console.SetWindowPosition(
Console.WindowLeft, Console.WindowTop+1);
break;
}
}
while (cki.Key != ConsoleKey.Escape); // end do-while
} // end try
catch (IOException e)
{
Console.WriteLine(e.Message);
}
finally
{
Console.Clear();
Console.SetWindowSize(1, 1);
Console.SetBufferSize(saveBufferWidth, saveBufferHeight);
Console.SetWindowSize(saveWindowWidth, saveWindowHeight);
Console.CursorVisible = saveCursorVisible;
}
} // end Main
} // end Sample
/*
This example produces results similar to the following:

1) Press the cursor keys to move the console window.
2) Press any key to begin. When you're finished...
3) Press the Escape key to quit.

...

+----+----+----+-
| | | |
| | | |
+----+----+----+-
| | | |
| | | |
+----+----+----+-

*/

J#
// This example demonstrates the Console.WindowLeft and
// Console.WindowTop properties.
import System.*;
import System.Text.*;
import System.IO.*;
//
class Sample
{
public static int saveBufferWidth;
public static int saveBufferHeight;
public static int saveWindowHeight;
public static int saveWindowWidth;
public static boolean saveCursorVisible;
//
public static void main(String[] args)
{
String m1 = "1) Press the cursor keys to move the console window.\n"
+ "2) Press any key to begin. When you're finished...\n"
+ "3) Press the Escape key to quit.";
String g1 = "+----";
String g2 = "| ";
String grid1;
String grid2;
StringBuilder sbG1 = new StringBuilder();
StringBuilder sbG2 = new StringBuilder();
ConsoleKeyInfo cki;
int y;
//
try {
saveBufferWidth = Console.get_BufferWidth();
saveBufferHeight = Console.get_BufferHeight();
saveWindowHeight = Console.get_WindowHeight();
saveWindowWidth = Console.get_WindowWidth();
saveCursorVisible = Console.get_CursorVisible();
//
Console.Clear();
Console.WriteLine(m1);
Console.ReadKey(true);

// Set the smallest possible window size before setting the buffer
// size.
Console.SetWindowSize(1, 1);
Console.SetBufferSize(80, 80);
Console.SetWindowSize(40, 20);

// Create grid lines to fit the buffer. (The buffer width is 80, but
// this same technique could be used with an arbitrary buffer width.)
for (y = 0; y < Console.get_BufferWidth() / g1.get_Length(); y++) {
sbG1.Append(g1);
sbG2.Append(g2);
}

sbG1.Append(g1, 0, Console.get_BufferWidth() % g1.get_Length());
sbG2.Append(g2, 0, Console.get_BufferWidth() % g2.get_Length());
grid1 = sbG1.ToString();
grid2 = sbG2.ToString();

Console.set_CursorVisible(false);
Console.Clear();
for (y = 0; y < Console.get_BufferHeight() - 1; y++) {
if (y % 3 == 0) {
Console.Write(grid1);
}
else {
Console.Write(grid2);
}
}
Console.SetWindowPosition(0, 0);
do {
cki = Console.ReadKey(true);
switch (cki.get_Key()) {
case ConsoleKey.LeftArrow :
if (Console.get_WindowLeft() > 0) {
Console.SetWindowPosition(Console.get_WindowLeft()-1,
Console.get_WindowTop());
}
break;
case ConsoleKey.UpArrow :
if (Console.get_WindowTop() > 0) {
Console.SetWindowPosition(Console.get_WindowLeft(),
Console.get_WindowTop() - 1);
}
break;
case ConsoleKey.RightArrow :
if (Console.get_WindowLeft() < Console.get_BufferWidth()
- Console.get_WindowWidth()) {
Console.SetWindowPosition(Console.get_WindowLeft()+1,
Console.get_WindowTop());
}
break;
case ConsoleKey.DownArrow :
if (Console.get_WindowTop() < Console.get_BufferHeight()
- Console.get_WindowHeight()) {
Console.SetWindowPosition(Console.get_WindowLeft(),
Console.get_WindowTop() + 1);
}
break;
}
} while (!(cki.get_Key().Equals(ConsoleKey.Escape))); // end do-while
} // end try
catch (IOException e) {
Console.WriteLine(e.get_Message());
}
finally {
Console.Clear();
Console.SetWindowSize(1, 1);
Console.SetBufferSize(saveBufferWidth, saveBufferHeight);
Console.SetWindowSize(saveWindowWidth, saveWindowHeight);
Console.set_CursorVisible(saveCursorVisible);
}
} //end main
} //end Sample
/*
This example produces results similar to the following:

1) Press the cursor keys to move the console window.
2) Press any key to begin. When you're finished...
3) Press the Escape key to quit.

...

+----+----+----+-
| | | |
| | | |
+----+----+----+-
| | | |
| | | |
+----+----+----+-

*/