《聖誕節裡吃餃子》
臘月廿四平安夜，過了今晚過聖誕。
聖誕雖說是洋節，吃口餃子也和諧。
聖誕擀了餃子皮，福祿壽喜都到齊。
聖誕餃子蘸着醋，來年出門不迷路。
聖誕餃子不吃飽，大年三十沒棉襖。
不到長城非好漢，不吃餃子無聖誕。
無！！！聖！！！！誕！！！
（定場詩完）
今年的聖誕節恰逢周末，許多觀衆朋友結束了一周辛勤的學習和工作，正好借此機會約上對象或者是正在追的對象出去玩耍。
小冷風一吹，小手手一牽，小禮物一送，小浪漫氣氛一起，事情就這麼成了
但送什麼禮物、怎麼送禮物，是一門藝術！在當今社會，人們對禮物早已不再滿足于物質層面的需求，而更追求精神層面的儀式感。
你送個蘋果，今晚吃完，過三天對方已經不記得你送過啥了。你送束花，現在的人都手笨，哪還會養花？你送個幾萬塊的名表名包，對方會覺得你隻是想用金錢收買自己，格局又小了（這一條我沒試過是以不太确定，但我猜應該是這樣）。
在我看來，送禮最重要的是創意！一個好的創意，既能展現你的特點，又能給對方留下深刻印象，是非常加分的。
考慮到我的粉絲群體通常比較喜歡理工科的硬核浪漫。今天，畢老師就來給大家分享5個很适合在聖誕節送的禮物，絕對好用，不好用我論文送你二作。
一、用Python寫一張賀卡
Python是一門面向對象程式設計的語言，天然很适合用于面向你的對象送禮物。
我在這裡幫大家找到了一段用Python生成聖誕賀卡的程式，來自https://www.codetoday.co.uk/christmas。隻要放到編譯器裡直接一run，就會出現一張非常溫馨可愛的聖誕賀卡！相信我，沒有人能抵抗如此用心的設計。
話不多說我們直接上代碼！
# https://www.codetoday.co.uk/christmas
importturtle
importrandom
importtime
width =600
height =500
window = turtle.Screen()
window.setup(width, height)
window.bgcolor("sky blue")
window.title("Merry Christmas")
snowball_rate =1,3
snowball_size =5,15
wind_change =1,5
max_wind =3
# Create all circle-shaped objects
defmake_circle(turtle_name,x,y,size,colour):
turtle_name.color(colour)
turtle_name.penup()
turtle_name.setposition(x, y)
turtle_name.dot(size)
# Create new snowballs and store in list
list_of_snowballs = []
defmake_snowball():
snowball = turtle.Turtle()
snowball.color("white")
snowball.penup()
snowball.setposition(random.randint(-2*width, width/2), height/2)
snowball.hideturtle()
snowball.size = random.randint(*snowball_size)
list_of_snowballs.append(snowball)
defmove_snowball(turtle_name,falling_speed=1,wind=):
turtle_name.clear()
turtle_name.sety(turtle_name.ycor() - falling_speed)
ifwind:
turtle_name.setx(turtle_name.xcor() + wind)
turtle_name.dot(turtle_name.size)
# Snowman: body
snowman = turtle.Turtle()
x_position =
y_positions =75,, -100
size =75
foryiny_positions:
make_circle(snowman, x_position, y, size,"white")
size = size *1.5
# Snowman: buttons
button_seperation =25
button_y_positions = [y_positions[1]-button_seperation,
y_positions[1],
y_positions[1]+button_seperation]
foryinbutton_y_positions:
make_circle(snowman, x_position, y,10,"black")
# Snowman: eyes
y_offset =10
x_seperation =15
forxinx_position-x_seperation, x_position+x_seperation:
make_circle(snowman, x, y_positions[] + y_offset,20,"green")
make_circle(snowman, x, y_positions[] + y_offset,10,"black")
# Snowman: nose
snowman.color("orange")
snowman.setposition(x_position -10, y_positions[]-y_offset)
snowman.shape("triangle")
snowman.setheading(200)
snowman.turtlesize(0.5,2.5)
window.tracer()
# Ground
grass = turtle.Turtle()
grass.fillcolor("forest green")
grass.penup()
grass.setposition(-width/2, -height/2)
grass.begin_fill()
for_inrange(2):
grass.forward(width)
grass.left(90)
grass.forward(70)
grass.end_fill()
ground = turtle.Turtle()
forxinrange(int(-width/2),int(width/2),int(width/200)):
make_circle(ground, x, -180, random.randint(5,20),"white")
text = turtle.Turtle()
text.color("red")
text.penup()
text.setposition(-100,170)
text.write("Merry Christmas",font=(
"Apple Chancery",30,"bold"),align="center")
text.setposition(130,140)
text.color("dark green")
text.write("Dao",font=("Avenir",30,"bold"),align="right")
text.color("black")
text.write("Bi",font=("Avenir",30,"normal"),align="left")
text.setx(50)
text.write("from",font=("Apple Chancery",20,"bold"),align="right")
text.hideturtle()
time_delay =
start_time = time.time()
wind =
wind_delay =5
wind_timer = time.time()
wind_step =0.1
whileTrue:
iftime.time() - start_time > time_delay:
make_snowball()
time_delay = random.randint(*snowball_rate)/10
forsnowballinlist_of_snowballs:
move_snowball(snowball,wind=wind)
ifsnowball.ycor()
snowball.clear()
list_of_snowballs.remove(snowball)
iftime.time() - wind_timer > wind_delay:
wind += wind_step
ifwind >= max_wind:
wind_step = -wind_step
elifwind
wind_step =abs(wind_step)
wind_delay = random.randint(*wind_change)/10
window.update()
turtle.done()
運作後是這樣的，會跳出一個動畫卡片：
看啊！雪人栩栩如生，瞪着萌萌的大眼睛雪花片片飄落，恰如此刻的美景看到這種浪漫的意境不感動的，那還是人？
請大家在評論區告訴我，看到這張圖，你，哭了嗎？
二、用turtle畫一個餃子
當然，有些同學可能會說，我們不過洋節！那沒關系，我們在聖誕節吃個餃子，不就中學為體西學為用了麼
下面我們用Python的turtle庫為大家畫個餃子，直接上代碼！
turtle.setup(600,400)
turtle.penup()
turtle.goto(-180,-80)
turtle.pendown()
turtle.pensize(5)
turtle.pencolor('black')
turtle.seth(-20)
turtle.circle(500,40)
turtle.seth(110)
turtle.circle(182,140)
turtle.seth(150)
foriinrange(4):
turtle.circle(-35,143)
turtle.circle(19,110)
turtle.circle(-35,135)
turtle.left(5)
turtle.circle(19,100)
turtle.circle(-26.5,150)
turtle.goto(-149,-9)
turtle.seth(-40)
turtle.fd(5)
turtle.goto(-83,52)
turtle.seth(-67)
turtle.fd(20)
turtle.goto(2,70)
turtle.seth(-97)
turtle.fd(24)
turtle.goto(83,42)
turtle.seth(-120)
turtle.fd(15)
turtle.goto(145,-24)
turtle.seth(-155)
turtle.pensize(12)
turtle.goto(-45,-20)
turtle.dot()
turtle.goto(40,-20)
turtle.goto(-25,-50)
turtle.seth(5)
turtle.fd(47)
turtle.seth(-85)
turtle.circle(25,175)
turtle.pensize(20)
turtle.pencolor('pink')
turtle.goto(-60,-50)
turtle.goto(58,-49)
turtle.goto(-200,300)
畫出來是這樣的
小小的turtle，飄若浮雲，矯若驚龍而最後的粉粉臉頰更是點睛之筆收到這個餃子程式但沒有愛上你的，那還是人？
特别要提醒的是，大家在給對象送上面的賀卡和餃子時，一定要直接把.py檔案發過去！
這樣如果對方因為python環境、版本問題無法運作甚至壓根電腦裡沒裝python的話，你就可以再去TA家裡幫着調試代碼，進一步增加了雙方接觸的機會，還能展現你強大的碼力。
千萬不要貼心地把賀卡和餃子給對方用pyinstaller打包成exe可執行檔案，一來不夠酷炫，二來萬一你對象用的是linux系統，就打不開exe，你的心血就白費了
三、用Matlab畫一棵聖誕樹
代碼如下
close all;clear;clc
% setup
snow=450; % number of snow flakes [0 .. 5000]
% draw tree
h=0:0.2:25; %vertical grid
[X,Y,Z] = cylinder(tree(h)); %produce a tree formed cylinder
Z=Z*25; %scale to the right heigth
%Add some diffusion to the surface of the tree to make it look more real
treeDiffusion=rand(126,21)-0.5;%some horizontal diffusion data
%add diffusion to the grid points
for cnt1=1:21
for cnt2=16:126%starting above the trunk
%get the angle to always diffuse in direction of the radius
angle=atan(Y(cnt2,cnt1)/X(cnt2,cnt1));
%split the diffusion in the two coordinates, depending on the angle
X(cnt2,cnt1)=X(cnt2,cnt1)+cos(angle)*treeDiffusion(cnt2,cnt1);
Y(cnt2,cnt1)=Y(cnt2,cnt1)+sin(angle)*treeDiffusion(cnt2,cnt1);
%some Vertical diffusion for each point
Z(cnt2,cnt1)=Z(cnt2,cnt1)+(rand-0.5)*0.5;
end
%draw the tree
h0 = figure('Units','inches');
pos = h0.Position;
pos(1) = 1; pos(2) = 1;
pos(3) = 7; pos(4) = 7;
h0.Position = pos;
surfl(X,Y,Z,'light')
%% View and format
%Use as nice green color map (darker at the bottom, lighter at the top)
r=(0.0430:(0.2061/50):0.2491)';%red component
g=(0.2969:(0.4012/50):0.6981)';%green component
b=(0.0625:(0.2696/50):0.3321)';%blue component
map=[r,g,b];%join in a map
for cnt=1:6
%change the lower part to brown for the trunk
map(cnt,:)=[77,63,5]/265;
colormap(map)%set the map
view([-37.5,4])%Change the view to see a little more of the Actual 3D tree
lighting phong %some nice lighting
shading interp %remove grid and smoothen the surface color
axis equal %takes care of display in the right proportion
axis([-10 10 -10 10 0 30]) %give some more axis space (for the snow later)
axis off %but don't show axis
hold on %to draw the rest
title('Merry Christmas','color','w',...
'fontsize',25,...
'fontweight','Bold')%self explaining
set(gcf,'color',[22 32 51]./255)
% Presents
%Draw some presents around the tree (each with random color)
drawPresent(2,-4,0,3,3,2);
drawPresent(-4,3,0,2,3,1.5);
drawPresent(5,3,0,4,3,3);
drawPresent(-14,-5,0,6,3,1);
drawPresent(-9,-10,0,2,2,2);
drawPresent(0,4,0,4,3,3);
drawPresent(-6,-13,0,3,3,3);
%% Snow
%create some random 3D coordinates for the snow (amount as in setup above)
snowX=(rand(snow-100,1)*25-12.5);
snowY=(rand(snow-100,1)*25-12.5);
snowZ=(rand(snow-100,1)*27);
color0 = jet(length(snowX));
%Note:Some flakes will end up IN the tree but just can't be seen then
for ii = 1:length(snowX)
plot3(snowX(ii),snowY(ii),snowZ(ii),'*','color',color0(ii, :),'markersize',randi(15))%plot coordinates as white snow flakes
% plot3(snowX(ii),snowY(ii),snowZ(ii),'*','color',color0(ii, :))%plot coordinates as white snow flakes
h=plot3(snowX,snowY,snowZ,'w*');
im = {};
for ii = 1:180
if mod(ii,3) == 0
h.Visible = 'off';
snowX=(rand(snow,1)*25-12.5);
snowY=(rand(snow,1)*25-12.5);
snowZ=(rand(snow,1)*27);
% pause(0.25)
else
view([ii,4])
% pause(0.1)
if ii > 85
frame = getframe(gcf);
im = frame2im(frame);
hold off%Done
im(cellfun(@isempty,im))=[];
% end % of function
file2write = 'chris.gif';
for ii = 1:length(im)
[A, map] = rgb2ind( im, 256);
if ii == 1
imwrite(A, map, file2write, 'gif','LoopCount',Inf,'DelayTime', 0.12);
imwrite(A, map, file2write, 'gif','WriteMode','append','DelayTime', 0.12);
%% ============= private functions
function r=tree(h)%Gives a profile for the tree
for cnt=1:length(h)
if(h(cnt)==0)%no Width at the bottom. Ensures a "closed" trunk
r(cnt)=0;
%smaller radius for the trunk
if (h(cnt)>0 && h(cnt)
r(cnt)=1.5;
%reduce radius gradually from 8 to 0. Note: will only work with a trunk heigth
%of 3 and a whole tree heigth of 25. Scale the height of the tree in
%the "draw tree" section, since the cylinder command will return a 1
%unit high cylinder anyway
if(h(cnt)>3)
r(cnt)=8-(h(cnt)-3)*0.3636;
end % of function
%Draws a present with the given coordinate + size in a random color
%Note:Given coordinates apply to the lower front + left corner of the
%present (the one closest to the viewer) as seen in the plot
function drawPresent(dx,dy,dz,scalex,scaley,scalez)
%the standard present coordinates
presentX=[0.5 0.5 0.5 0.5 0.5; 0 1 1 0 0; 0 1 1 0 0; 0 1 1 0 0; 0.5 0.5 0.5 0.5 0.5];
presentY=[0.5 0.5 0.5 0.5 0.5; 0 0 1 1 0; 0 0 1 1 0; 0 0 1 1 0; 0.5 0.5 0.5 0.5 0.5];
presentZ=[0 0 0 0 0; 0 0 0 0 0; 0.5 0.5 0.5 0.5 0.5; 1 1 1 1 1; 1 1 1 1 1];
%draw some presents with random colors
%scale present and move it to the right place and get the plot handle
myHandle=surf((presentX*scalex+dx),(presentY*scaley+dy), (presentZ*scalez+dz));
%some random color map
randColorMap(:,:,1)=repmat(rand,[5,5]);%r component
randColorMap(:,:,2)=repmat(rand,[5,5]);%g component
randColorMap(:,:,3)=repmat(rand,[5,5]);%b component
%Assign colormap just to the plot handle object of the present, so the tree
%does not change color
set(myHandle,'CData',randColorMap)
shading interp %Nice shding + without grid
出來的效果也是很閃耀的！喜歡一棵樹的眼神是藏不住的
如果你對象沒有Matlab，那你正好去TA家給裝一個。Matlab安裝包十幾個G，安裝的時候夠你們玩點有的沒的東西了
四、用Matlab徹底征服對方！
人一旦開始用Matlab做數學計算以外的東西，就很容易堕入它的黑暗面。網上的各種玩法會讓Matlab公司覺得15500元賣你這個軟體都虧了。
可以說是造型精美，算法巧妙。推薦大家一定要試試，試完了一定要把你對象的回複截圖發給我。
五、用AI給對方畫幾幅畫
近年來随着人工智能的發展，AI已經可以根據詞語來畫畫。比如著名的模型GPT-3，你給它輸入一個詞語，它就會自動按這個詞語創造圖檔！像你輸入“牛油果椅子”，它就會自己原創出下面這些圖檔，非常Amazing！
清華之前也做過一個類似的叫Cogview。比如我們輸入“聖誕節快樂”，AI就會自動創作出一些很貼切的圖檔。
網址在此：https://wudao.aminer.cn/CogView/index.html
我們放大看看，世界上最先進的AI模型是否給你的聖誕節增添了一絲節日的氛圍呢
好的，小技巧就給大家介紹這麼多，你學廢了嗎？拿好這篇教程去給你的對象送禮吧！好用的話，記得帶點水果，來醫院看我。
留言區福利
畢導今天也給大家準備了一份小禮物！
留言區2、3、5、7、11樓可獲得《新春綻放 大地清華》2022年年曆
13、17、19、23、29樓可獲得清華大學2022日程本
以上禮物均由
清華大學官方文創品牌清華印象（公衆号搜尋“水木有禮”）提供