B10034005_薛天惠_聖誕樹

    

size (400, 600);

background(23, 100, 203);

for (int i=3; i<400; i=i+1){

  stroke(23+i,100+i,203+i);

  line(0,150-i/2,400,100-i);

}

for (int i=3; i<400; i=i+1){

  stroke(23-i,100-i,203-i);

  line(0,450+i,400,400+i*2/3);

}

for (int i=1; i<40; i=i+1) {

  stroke(108,88,7);

  line(200+i*2/3,270,200+i,400);

}

for (int i=1; i<40; i=i+1) {

  stroke(108,88,7);

  line(200-i*2/3,270,200-i,400);

}

for (int i=1; i<160; i=i+1) { //down

  stroke(30,147,120);

  line(200,150,120+i,300+i/7);

}

for (int i=1; i<100; i=i+1) { //up

  stroke(156,253,234);

  line(200,130,240-i,190+i/4);

}