字符雨的实现可以利用C语言来进行。
C语言是一门面向过程的、抽象化的通用程序设计语言，广泛应用于底层开发。C语言能以简易的方式编译、处理低级存储器。C语言是仅产生少量的机器语言以及不需要任何运行环境支持便能运行的高效率程序设计语言。
可用C语言编程来达到黑客文字雨的效果 。。。
效果如下：
代码如下，vc++编译通过 。。
#include <windows.h>
#define ID_TIMER 1
#define STRMAXLEN 25 //一个显示列的最大长度
#define STRMINLEN 8 //一个显示列的最小长度
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM)
//////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////
typedef struct tagCharChain //整个当作屏幕的一个显示列,这是个双向列表
{
struct tagCharChain *prev //链表的前个元素
TCHAR ch //一个显示列中的一个字符
struct tagCharChain *next //链表的后个元素
}CharChain, *pCharChain
typedef struct tagCharColumn
{
CharChain *head, *current, *point
int x, y, iStrLen //显示列的开始显示的x,y坐标,iStrLen是这个列的长度
int iStopTimes, iMustStopTimes //已经停滞的次数和必须停滞的次数,必须停滞的次数是随机的
}CharColumn, *pCharColumn
int main(HINSTANCE hInstance, HINSTANCE hPrevInstance,PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("matrix")
HWND hwnd
MSG msg
WNDCLASS wndclass
wndclass.style = CS_HREDRAW | CS_VREDRAW
wndclass.lpfnWndProc = WndProc
wndclass.cbClsExtra = 0
wndclass.cbWndExtra = 0
wndclass.hInstance = hInstance
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION)
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW)
wndclass.hbrBackground = (HBRUSH) GetStockObject (BLACK_BRUSH)
wndclass.lpszMenuName = NULL
wndclass.lpszClassName = szAppName
if(!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("此程序必须运行在NT下!"), szAppName, MB_ICONERROR)
return 0
}
hwnd = CreateWindow (szAppName, NULL,
WS_DLGFRAME | WS_THICKFRAME | WS_POPUP,
0, 0,
GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN),
NULL, NULL, hInstance,
NULL)
ShowWindow (hwnd, SW_SHOWMAXIMIZED) //最大化显示
UpdateWindow (hwnd)
ShowCursor(FALSE) //隐藏鼠标光标
srand ((int) GetCurrentTime ()) //初始化随机数发生器
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg)
DispatchMessage (&msg)
}
ShowCursor(TRUE) //显示鼠标光标
return msg.wParam
}
TCHAR randomChar() //随机字符产生函数
{
return (TCHAR)(rand()%(126-33)+33) //33到126之间
}
int init(CharColumn *cc, int cyScreen, int x) //初始化
{
int j
cc->iStrLen = rand()%(STRMAXLEN-STRMINLEN) + STRMINLEN //显示列的长度
cc->x = x+3 //显示列的开始显示的x坐标
cc->y =rand()%3?rand()%cyScreen:0 //显示列的开始显示的y坐标
cc->iMustStopTimes = rand()%6
cc->iStopTimes = 0
cc->head = cc->current =
(pCharChain)calloc(cc->iStrLen, sizeof(CharChain)) //生成显示列
for(j=0 j<cc->iStrLen-1 j++)
{
cc->current->prev = cc->point //cc->point一个显示列的前个元素
cc->current->ch = '\0'
cc->current->next = cc->current+1 //cc->current+1一个显示列的后个元素
cc->point = cc->current++ //cc->point = cc->current cc->current++
}
cc->current->prev = cc->point //最后一个节点
cc->current->ch = '\0'
cc->current->next = cc->head
cc->head->prev = cc->current //头节点的前一个为此链的最后一个元素
cc->current = cc->point = cc->head //free掉申请的内存要用current当参数
cc->head->ch = randomChar() // 对链表头的 元素填充
return 0
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc
//ctn 用来确定一个显示链是否 向下前进,如果等待次数超过必须等待的次数,ctn就代表要向下前进
int i, j, temp, ctn //j为一个显示链中除链表头外的在屏幕上显示的y坐标,temp绿色过度到黑色之用
static HDC hdcMem
HFONT hFont
static HBITMAP hBitmap
static int cxScreen, cyScreen //屏幕的宽度 高度.
static int iFontWidth=10, iFontHeight=15, iColumnCount //字体的宽度 高度, 列数
static CharColumn *ccChain
switch (message)
{
case WM_CREATE:
cxScreen = GetSystemMetrics(SM_CXSCREEN) //屏幕宽度
cyScreen = GetSystemMetrics(SM_CYSCREEN)
SetTimer (hwnd, ID_TIMER, 10, NULL)
hdc = GetDC(hwnd)
hdcMem = CreateCompatibleDC(hdc)
hBitmap = CreateCompatibleBitmap(hdc, cxScreen, cyScreen)
SelectObject(hdcMem, hBitmap)
ReleaseDC(hwnd, hdc)
//创建字体
hFont = CreateFont(iFontHeight, iFontWidth-5, 0, 0, FW_BOLD, 0, 0, 0,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
DRAFT_QUALITY, FIXED_PITCH | FF_SWISS, TEXT("Fixedsys"))
SelectObject(hdcMem, hFont)
DeleteObject (hFont)
SetBkMode(hdcMem, TRANSPARENT) //设置背景模式为 透明
iColumnCount = cxScreen/(iFontWidth*3/2) //屏幕所显示字母雨的列数
ccChain = (pCharColumn)calloc(iColumnCount, sizeof(CharColumn))
for(i=0 i<iColumnCount i++)
{
init(ccChain+i, cyScreen, (iFontWidth*3/2)*i)
}
return 0
case WM_TIMER:
hdc = GetDC(hwnd)
PatBlt (hdcMem, 0, 0, cxScreen, cyScreen, BLACKNESS) //将内存设备映像刷成黑色
for(i=0 i<iColumnCount i++)
{
ctn = (ccChain+i)->iStopTimes++ > (ccChain+i)->iMustStopTimes
//
(ccChain+i)->point = (ccChain+i)->head //point用于遍历整个显示列
//第一个字符显示为 白色
SetTextColor(hdcMem, RGB(255, 255, 255))
TextOut(hdcMem, (ccChain+i)->x, (ccChain+i)->y, &((ccChain+i)->point->ch), 1)
j = (ccChain+i)->y
(ccChain+i)->point = (ccChain+i)->point->next
//遍历整个显示列,将这个显示列里的字符从下往上显示
temp = 0 //temp绿色过度到黑色之用
while((ccChain+i)->point != (ccChain+i)->head && (ccChain+i)->point->ch)
{
SetTextColor(hdcMem, RGB(0, 255-(255*(temp++)/(ccChain+i)->iStrLen), 0))
TextOut(hdcMem, (ccChain+i)->x, j-=iFontHeight, &((ccChain+i)->point->ch), 1)
(ccChain+i)->point = (ccChain+i)->point->next
}
if(ctn)
(ccChain+i)->iStopTimes = 0
else continue
(ccChain+i)->y += iFontHeight //下次开始显示的y坐标 为当前的y坐标加上 一个字符的高度
//如果开始显示的y坐标减去 整个显示列的长度超过了屏幕的高度
if( (ccChain+i)->y-(ccChain+i)->iStrLen*iFontHeight > cyScreen)
{
free( (ccChain+i)->current )
init(ccChain+i, cyScreen, (iFontWidth*3/2)*i)
}
//链表的头 为此链表的前个元素,因为下次开始显示的时候 就相当与在整个显示列的开头添加个元素,然后在开始往上显示
(ccChain+i)->head = (ccChain+i)->head->prev
(ccChain+i)->head->ch = randomChar()
}
BitBlt(hdc, 0, 0, cxScreen, cyScreen, hdcMem, 0, 0, SRCCOPY)
ReleaseDC(hwnd, hdc)
return 0
case WM_RBUTTONDOWN:
KillTimer (hwnd, ID_TIMER)
return 0
case WM_RBUTTONUP:
SetTimer (hwnd, ID_TIMER, 10, NULL)
return 0
//处理善后工作
case WM_KEYDOWN:
case WM_LBUTTONDOWN:
case WM_DESTROY:
KillTimer (hwnd, ID_TIMER)
DeleteObject(hBitmap)
DeleteDC(hdcMem)
for(i=0 i<iColumnCount i++)
{
free( (ccChain+i)->current )
}
free(ccChain)
PostQuitMessage (0)
return 0
}
return DefWindowProc (hwnd, message, wParam, lParam)
}
#include<stdio.h>
#include<time.h>
#include<windows.h>
typedef struct
{
int x,y
char ch
}STU
STU st[100]
//出现位置
void gotoxy(int x, int y)
{
HANDLE hout
COORD pos
pos.X = x
pos.Y = y
hout = GetStdHandle(STD_OUTPUT_HANDLE)
SetConsoleCursorPosition(hout, pos)
}
/*隐藏光标*/
void show_cursor(int hide)
{
CONSOLE_CURSOR_INFO cciCursor
HANDLE hout
hout = GetStdHandle(STD_OUTPUT_HANDLE)
if(GetConsoleCursorInfo(hout, &cciCursor))
{
cciCursor.bVisible = hide
SetConsoleCursorInfo(hout, &cciCursor)
}
}
/*设置颜色*/
void set_color(int color)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), color)
}
main()
{
int i,j
show_cursor(0)
srand(time(NULL))
//初始化结构体
for (i=0i<100i++)
{
st[i].x = rand()%80
st[i].y = rand()%20
st[i].ch = rand()%(49-47)+48
}
while (1)
{
for (i=0i<100i++)
{
gotoxy(st[i].x,st[i].y)
set_color(0x2)//最先出现的颜色；
putchar(st[i].ch)
gotoxy(st[i].x,st[i].y-5)
putchar(' ')
st[i].y++
st[i].ch = rand()%(49-47)+48
if (st[i].y-5>=18)
{
gotoxy(st[i].x,st[i].y-1)
putchar(' ')
gotoxy(st[i].x,st[i].y-2)
putchar(' ')
gotoxy(st[i].x,st[i].y-3)
putchar(' ')
gotoxy(st[i].x,st[i].y-4)
putchar(' ')
gotoxy(st[i].x,st[i].y-4)
putchar(' ')
}
if (st[i].y >23)
{
st[i].x = rand()%80
st[i].y = rand()%20
}
gotoxy(st[i].x,st[i].y)
set_color(0xA)//由前一个颜色渐变成的颜色
putchar(st[i].ch)
}
Sleep(120)
}
}
color(0) printf("黑色\n") color(1) printf("蓝色\n") color(2) printf("绿色\n") color(3) printf("湖蓝色\n") color(4) printf("红色\n") color(5) printf("紫色\n") color(6) printf("黄色\n") color(7) printf("白色\n") color(8) printf("灰色\n") color(9) printf("淡蓝色\n") color(10) printf("淡绿色\n") color(11) printf("淡浅绿色\n") color(12) printf("淡红色\n") color(13) printf("淡紫色\n") color(14) printf("淡黄色\n") color(15) printf("亮白色\n")几个基本的颜色；
