1.方形
import turtle t = turtle.Pen() for x in range(200): t.forward(x)#向右移动x t.left(90)#向左旋转九十度 #之后一直这样循环，直到x=199
效果图：
2.画圆形
import turtle t = turtle.Pen() for x in range(100): t.circle(x)#在当前位置绘制了一个半径为x的圆 t.left(91)#按道理90度，91是为了便于不断变大
3.带上颜色
import turtle t = turtle.Pen() t.pencolor("red")#笔颜色为红色 for x in range(100): t.forward(x) t.left(91)
效果图：
4.多种颜色
import turtle t = turtle.Pen() colors = ["red", "yellow", "blue","green"] for x in range(100): t.pencolor(colors[x%4])#%叫做模除操作符，依次选取四种颜色，记住这种模型就好了 t.forward(x) t.left(91)
效果图：
5.加上背景图
import turtle t = turtle.Pen() turtle.bgcolor("black")#画图背景为黑色 colors = ["red","yellow","blue","green"] for x in range(100): t.pencolor(colors[x%4]) t.circle(x) t.left(91)
6.控制边数
import turtle t = turtle.Pen()#拿起笔 turtle.speed(9) turtle.bgcolor("black")#背景颜色 # You can choose between 2 and 6 sides for some cool shapes! sides = 6#边数 colors = ["red","yellow","blue", "orange","green","purple"]#颜色 for x in range(360): t.pencolor(colors[x%sides])#有多少边就除以几，每一边颜色一种 t.forward(x * 3/sides + x)#默认方向为右，每一次画完后 t.left(360/sides + 1)#这个1加不加影响不大，实际来说就应该360/6=60度旋转,+1是为帮助图不断变大 t.width(x*sides/200)#随着图越来越大，笔的宽度越来越大,width用来修改笔宽度
效果图：
