diff --git a/1.py b/1.py
new file mode 100644
index 0000000..8a954f5
--- /dev/null
+++ b/1.py
@@ -0,0 +1,6 @@
+a="天"
+b="地"
+c=a
+a=b
+b=c
+print(a,b)
\ No newline at end of file
diff --git a/diy0.py b/diy0.py
new file mode 100644
index 0000000..8a954f5
--- /dev/null
+++ b/diy0.py
@@ -0,0 +1,6 @@
+a="天"
+b="地"
+c=a
+a=b
+b=c
+print(a,b)
\ No newline at end of file
diff --git a/diy1.py b/diy1.py
new file mode 100644
index 0000000..93aa661
--- /dev/null
+++ b/diy1.py
@@ -0,0 +1,23 @@
+import turtle
+import random
+turtle.speed(0)
+turtle.bgcolor("black")
+turtle.pensize(2)
+turtle.pencolor("white")
+acc_ext=0
+r=10
+turtle.penup()
+turtle.goto(0,-r)
+turtle.pendown()
+while True:
+    turtle.color(random.choice(["white","black"]))
+    ext=random.random()*90
+    turtle.circle(r,ext)
+    acc_ext+=ext
+    if acc_ext>360:
+        acc_ext=0
+        turtle.penup()
+        turtle.goto(0,-r)
+        turtle.setheading(0)
+        turtle.pendown()
+        r+=3
\ No newline at end of file
diff --git a/diy2.py b/diy2.py
index 2bc971e..7aa5224 100644
--- a/diy2.py
+++ b/diy2.py
@@ -1,4 +1,11 @@
-message = "诺依，周末一起去看动漫展吧！"
-
-# 请对message进行遍历，取出所有元素
-
+import turtle
+pen=turtle.Pen()
+pen.pendown()
+pen.pensize(2)
+pen.pencolor("red")
+turtle.speed(20)
+for i in range(100):
+  pen.circle(i+20)
+  pen.right(20)
+pen.hideturtle()
+turtle.done()
\ No newline at end of file