save project

3.py

+import turtle
+screen=turtle.Screen()
+screen.bgcolor("black")
+pen = turtle.Pen()
+colors=["red","blue","yellow","green"]#创建列表"red","orange","yellow","green"
+for i in range(1,10000):
+    pen.forward(i)
+    pen.pencolor(colors[i%4])#对使用次数对列表取余
+    pen.right(91)
+turtle.done()
\ No newline at end of file

4.py

+j = 5  # 列
+i = 5   # 行
+print(j, '*', i,'=', (j * i))
\ No newline at end of file

5.py

+i=1#让i恒等于1
+for j in range(1,10):    #让j从1循环到9 
+    print(j, '*', i,'=', (j * i), end="  ")    #算式结束距离增大end=多个空格
\ No newline at end of file

6.py

+for i in range(1,10):    #i从1循环到9
+    for j in range(1,i+1):    #j从1循环到9
+        print(i,'*',j, "=",(i*j),end='  ')      #打印i*j的结果
+    print()
\ No newline at end of file

diy1.py

+"""
+使用turtle模块画图
+每次移动都增加画笔移动的长度，并旋转91°，重复执行300次，查看效果
+"""
+import turtle
+
+pen = turtle.Pen()
+# 请创造师在下面接着创作
+distance=1
+for i in range(1,10000):
+    pen.forward(i)
+    i+=1
+    pen.right(91)
+# 隐藏画笔，保存画布
+pen.hideturtle()
+turtle.done()
\ No newline at end of file