作業二：pattern - 蝴蝶結cute!

size 400 400

repeat A 0 50
{

pen 50 0 50
line 0 A 400 A

}

repeat A 50 100
{

pen 60 0 50
line 0 A 400 A

}

repeat A 100 150
{

pen 70 0 50
line 0 A 400 A

}

repeat A 150 200
{

pen 80 0 50
line 0 A 400 A

}



repeat A 0 50
{

pen 50 0 50
line A 0 A 400

}

repeat A 50 100
{

pen 60 0 50
line A 0 A 400

}

repeat A 100 150
{

pen 70 0 50
line A 0 A 400

}

repeat A 150 200
{

pen 80 0 50
line A 0 A 400

}



repeat A 200 0
{

pen 10
line 0 A 200 A

}

repeat A 400 300
{

pen 80
line A 0 A 200

}


repeat A 0 100
{

pen 80
line A 200 A 400

}








repeat A 0 200
{

pen 90 80 40
line 0 200 A 0

}

repeat A 400 200
{

pen 90 80 40
line 200 400 400 A

}





repeat A 400 300
{

pen 80
line 100 A 200 A

}

repeat A 0 100
{

pen 80
line 200 A 300 A

}





repeat A 400 200
{

pen 100
line 200 A 400 A

}

repeat A 200 0
{

pen 100
line 0 A 200 A

}




repeat A 200 100
{

pen 0 100 30
line A 400 A 300

}

repeat A 100 0
{

pen 0 100 30
line 100 300 A 400

}

repeat A 200 300
{

pen 0 90 30
line 0 A 100 A

}


repeat A 300 400
{

pen 0 90 30
line 100 300 0 A

}



repeat A 200 100
{

pen 0 100 30
line 300 A 400 A

}

repeat A 100 0
{

pen 0 100 30
line 300 100 400 A

}

repeat A 200 300
{

pen 0 90 30
line A 0 A 100

}

repeat A 300 400
{

pen 0 90 30
line 300 100 A 0

}





repeat A 0 2
{

pen 10
line 160 (260+A) 180 (252+A)
line 180 (252+A) 200 (255+A)
line 200 (258+A) 172 (257+A)
line (172+A) 257 (160+A) 228
line 160 (228+A) 175 (205+A)
line 175 (205+A) 200 200

}

repeat A 0 2
{

pen 10
line (200+A) 230 (190+A) 220
line (190+A) 220 (195+A) 210
line 195 (210+A) 205 (210+A)
line (205+A) 210 (211+A) 225

}

repeat A 0 2
{

line (230+A) 230 (220+A) 200
line 220 (200+A) 235 (200+A)
line 225 (228+A) 235 (223+A)

}


repeat A 0 2
{

line 240 (190+A) 258 (185+A)
line (258+A) 185 (250+A) 195
line (250+A) 195 (232+A) 180
line (232+A) 180 (245+A) 165
line 245 (165+A) 260 (173+A)

}