圣手书生，恭祝大家，春节快乐
代码并不复杂，这里分别讲解一下。
粒子系统的设计：
struct Cell{
int x, y, tx, ty, len;
int s, e;
int color;
void show(int t){
if (t>=s and t<=e){
int x1= x+ (tx-x)*(t-s)/(e-s);
int y1= y+ (ty-y)*(t-s)/(e-s);
if (x1>=0 && y1>0 && y1<MAXY){
setColor(color);
gotoxy(x1,y1);
cout << "*";
}
}
if (t>=s+len and t<=t+len){
int tt= t-len;
int x1= x+ (tx-x)*(tt-s)/(e-s);
int y1= y+ (ty-y)*(tt-s)/(e-s);
if (x1>=0 && y1>0 && y1<MAXY){
gotoxy(x1,y1);
cout << " ";
}
}
}
} cells[2000];粒子的信息基本参数：起点x,y，终点x,y，有效长度，可见时间，消失时间，颜色。
只有一个控制粒子显示的函数：当粒子在时间区域内，显示一个星号作为粒子的形态，在有效长度之后，显示空格以隐藏它。
显示所有粒子，只通过这样一个非常简单的函数：
void show(){
int total= 100;
for (int t=0; t<=total; t++){
for (int i=0; i<n; i++){
cells[i].show(t);
}
Sleep(100);
}
}添加圆形礼花：
void addCircle(int cx, int cy, int start, int color){
int r= 20;
double pi=3.14;
for (int i=0; i<10; i++){
int j= i*36;
int x1= cx+ r*cos(j*pi/180);
int y1= cy+ r*sin(j*pi/180);
cells[n++]={cx, cy, x1, y1, 5, start, start+10, color};
}
addCell(cx, cy+20, cx, cy, 3, start-7, start, color);
}
添加字形礼花：
void addWord(int cx, int cy, int start, int color, int zi){
for (int i=0; i<16; i++){
int a= data[zi][i];
for (int j=0; j<16; j++){
int b= a%2;
a/=2;
if (b>0) {
addCell(cx, cy, cx+8-j, cy-8+i, 2, start, start+15, color);
addCell(cx+8-j, cy-8+i, cx+8-j, cy-8+i, 8, start+15, start+25, color);
}
}
}
addCell(cx, cy+20, cx, cy, 3, start-7, start, color);
}字形礼花涉及了字库的信息，这里为了让代码简洁，直接将用到的字提取为数组，嵌入到了代码中。
int data[20][16]={{0,16368,2080,1088,640,256,1728,6192,57614,256,8176,256,256,256,32764,0},
{16,248,16128,256,256,16376,256,256,256,65534,256,256,256,256,1280,512},
{544,528,520,16352,544,544,544,544,65532,516,516,516,516,552,528,512},
{1088,1088,16376,1088,1088,65534,1088,2080,4624,8712,49702,4752,4680,8776,2560,1024},
{8192,5116,4612,64004,2564,4612,5116,14480,21648,38032,4240,4370,4370,4626,5134,6144},
{256,256,256,256,256,65534,256,256,640,640,1088,1088,2080,4112,8200,49158},
{512,256,32766,16386,32772,32764,512,3336,29072,672,3264,29088,1688,6278,57984,256},
{256,256,32764,256,16376,512,65534,2080,4112,12264,51238,2080,4064,2080,2080,4064},
{2080,2080,65534,2080,2080,0,32760,520,520,520,520,592,544,512,512,512},
{4160,4160,4160,5112,6216,21576,20552,20552,38910,4160,4256,4256,4368,4368,4616,5126},
{32,240,7936,4096,4352,8448,8448,16380,256,2336,2320,4360,8452,16644,1280,512},
{256,4352,4352,4352,16380,8448,16640,33024,256,16376,256,256,256,256,65534,0}
};最后，主程序进行组装：
int main(){
hideCursor();
addCircle(20, 5, 12, 9);
addCircle(40, 7, 13, 10);
addCircle(80, 7, 14, 11);
addCircle(60, 5, 14, 12);
addWord(20, 10, 32, 14, 0);
addWord(40, 12, 33, 14, 1);
addWord(60, 10, 34, 14, 2);
addWord(80, 12, 34, 14, 11);
addWord(20, 12, 52, 13, 3);
addWord(40, 10, 53, 13, 4);
addWord(60, 12, 54, 13, 5);
addWord(80, 10, 54, 13, 6);
addWord(25, 12, 72, 12, 7);
addWord(45, 10, 73, 12, 8);
addWord(65, 12, 74, 12, 9);
addWord(85, 10, 74, 12, 10);
show();
return 0;
}4个圆形礼花，12个字形礼花。
完整源代码下载：
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