Exemplo n.º 1
0
int randomChar(int l_s_len){
    int i = l_s_len + 1;
    char c;
 
    if(l_s_len==s_len_1){
        printf("%s\n", result);
        return 0;
    }
 
    while(i < s_len){
        result[l_s_len] = string[l_s_len];
        randomChar(l_s_len + 1);
        c = string[l_s_len];
        string[l_s_len] = string[i];
        string[i] = c;
        i++;
    }
 
    for(l_s_len;l_s_len<s_len_2;l_s_len++){
            string[l_s_len]=string[l_s_len+1];
    }
 
    string[l_s_len] = c;
 
    return 0;
}
Exemplo n.º 2
0
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;
}
Exemplo n.º 3
0
char* randomString() {
	int length = rand() % MAX_STRING_LENGTH;
	char* string = malloc(sizeof(char*) * length);
	int i;
	for( i=0; i<length-1; i++ )
		string[i] = randomChar();
	string[length] = '\0';
	return string;
}
Exemplo n.º 4
0
int main(){
    s_len = strlen(string);
    s_len_1 = s_len - 1;
    s_len_2 = s_len - 2;
    result = malloc(s_len_1);

    randomChar(0);

    return 0;
}
Exemplo n.º 5
0
char * randomString(int string_sz){
    char * string = (char *) malloc(string_sz*sizeof(char) + 1);

    int i;
    for(i = 0; i < string_sz; i++){
        char c = randomChar();
        string[i] = c;
    }
    string[string_sz] = '\0';

    return string;
}
Exemplo n.º 6
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);
}