diff --git a/1.py b/1.py
new file mode 100644
index 0000000..cbc0882
--- /dev/null
+++ b/1.py
@@ -0,0 +1,13 @@
+a=["张三","李四","张三","李四","李四"]
+for i in a:
+    if i=='李四':
+        a.remove("李四")
+print(a)
+# i=0
+# while i<len(a):
+#     print(len(a))
+#     if a[i]=='李四':
+#         a.remove("李四")
+#         i=i-1
+#     i=i+1
+# print(a)
\ No newline at end of file
diff --git a/10.py b/10.py
new file mode 100644
index 0000000..28479a8
--- /dev/null
+++ b/10.py
@@ -0,0 +1,16 @@
+import turtle
+turtle.penup()
+turtle.goto(-100,100)
+turtle.pendown()
+for i in range(4):
+    turtle.forward(200)
+    turtle.right(90)
+turtle.penup()
+turtle.home()
+turtle.dot(20,"red")
+turtle.goto(-40,0)
+turtle.dot(20,"red")
+turtle.goto(40,0)
+turtle.dot(20,"red")
+turtle.hideturtle()
+turtle.done()
\ No newline at end of file
diff --git a/11.py b/11.py
new file mode 100644
index 0000000..576d858
--- /dev/null
+++ b/11.py
@@ -0,0 +1,18 @@
+import turtle
+turtle.penup()
+turtle.goto(-90,90)
+turtle.pendown()
+turtle.color("black","red")
+turtle.begin_fill()
+for i in range(4):
+    turtle.forward(180)
+    turtle.right(90)
+turtle.end_fill()
+turtle.color("black","yellow")
+turtle.begin_fill()
+turtle.goto(90,90)
+turtle.goto(-90,-90)
+turtle.goto(-90,90)
+turtle.end_fill()
+turtle.hideturtle()
+turtle.done()
\ No newline at end of file
diff --git a/12.py b/12.py
new file mode 100644
index 0000000..99fee59
--- /dev/null
+++ b/12.py
@@ -0,0 +1,2 @@
+a=input()
+print("百",a[0],"十",a[1],"",a[2])
\ No newline at end of file
diff --git a/2.py b/2.py
new file mode 100644
index 0000000..152a71a
--- /dev/null
+++ b/2.py
@@ -0,0 +1,41 @@
+# a=(3,42,2,3,4,65,7,8,6)
+# b=sorted(a)
+# # print(b)
+# print(-5 and  not 0)
+# # print(1 or 0)
+# print(4/2)
+# print(4.0//2)
+# #增加
+
+# a.append(10)
+# print(a)
+# a.insert(2,5)
+# print(a)
+# print(a[2:5])
+# a.extend(a[2:5])
+# print(a)
+# # #删除
+# a.pop(3)
+# # print(a)
+# # del a[4]
+# # print(a)
+# # a.remove(3)
+# # a[0]=20
+# # a.clear()
+# # print(a)
+# sum=0
+# for i in a:
+#     if i==4:
+#         sum+=1
+# print(sum)
+# while 3 in a:
+#     a.remove(3)
+# print(a)
+a=[2,3,4,23,2,3,4,5]
+# b=a[:]
+# a.sort()
+# print(a)
+# print(b)
+# for i in range(1,len(a),2):
+#     print(a[i])
+print(a[1::2])
\ No newline at end of file
diff --git a/3.py b/3.py
new file mode 100644
index 0000000..20a2782
--- /dev/null
+++ b/3.py
@@ -0,0 +1,17 @@
+"""
+dlkfskld
+dsfsdf
+sdfsdfsd
+sdfds
+fsdf
+
+# """
+# print("我%010.1f岁了！"%13.88)
+print('sfsddsf'+r'\n'+'kdsjfkldjslkfj'+r'\n'+'sdfsdfsdf')
+# a='13'
+# int(a)
+# print(type(a))
+a=input("name：")
+b=input("age：")
+c=input("grade:")
+print('我的姓名：{},年龄：{}岁,年级：{}年级'.format(a,b,c))
\ No newline at end of file
diff --git a/4.py b/4.py
new file mode 100644
index 0000000..ce7de6c
--- /dev/null
+++ b/4.py
@@ -0,0 +1,7 @@
+# ls =["2021","123","Python"]
+# ls.append([2021,"2021"])
+# ls.append(2021)
+# print(ls)
+a=list("fiveadfad")
+a[2:]=list("ddf")
+print(a)
\ No newline at end of file
diff --git a/5.py b/5.py
new file mode 100644
index 0000000..098167a
--- /dev/null
+++ b/5.py
@@ -0,0 +1,16 @@
+import turtle
+turtle.penup()
+turtle.goto(-100,100)
+turtle.pendown()
+for i in range(4):
+    turtle.forward(200)
+    turtle.right(90)
+turtle.color("black","blue")
+turtle.penup()
+turtle.goto(-50,0)
+turtle.pendown()
+turtle.left(90)
+turtle.begin_fill()
+turtle.circle(-50,-360)
+turtle.end_fill()
+turtle.done()
\ No newline at end of file
diff --git a/6.py b/6.py
new file mode 100644
index 0000000..3d355dc
--- /dev/null
+++ b/6.py
@@ -0,0 +1,7 @@
+a={'1':"————星期一",'2':"————星期二"}
+while True:
+    b=input("输入数字：")
+    try:
+        print(b,a[b])
+    except:
+        print("输入错误！")
diff --git a/7.py b/7.py
new file mode 100644
index 0000000..ac9cc77
--- /dev/null
+++ b/7.py
@@ -0,0 +1,27 @@
+# a={1:3,4:5}
+# print(a.popitem())
+# # print(a)
+# # str='www.baidu.com.34.54'
+# # print(str.find("4"))
+# # print(str.split('.',3))
+# # print("{0},{2}".format(4,5,4))
+# a=[99,80,86,89,94,92,75,87,86,95]
+# zd=max(a)
+# zx=min(a)
+# print(zd,zx)
+# a.remove(zd)
+# a.remove(zx)
+# print(a)
+# average=sum(a)/len(a)
+# # print(average)
+# a=input("Python:")
+# b=a.count("python")
+# print(b)
+a=int(input("begin:"))
+b=int(input("end:"))
+for i in range(a,b+1):
+    for j in range(2,i):
+        if i%j==0:
+            break
+    else:
+        print(i,"是质数")
\ No newline at end of file
diff --git a/8.py b/8.py
new file mode 100644
index 0000000..16d586e
--- /dev/null
+++ b/8.py
@@ -0,0 +1,9 @@
+a=input()
+b=[]
+for i in a:
+    if i>='0' and i<='9':
+        continue
+    else:
+        b.append(i)
+c="".join(b)
+print(c)
\ No newline at end of file
diff --git a/9.py b/9.py
new file mode 100644
index 0000000..c5dd2c6
--- /dev/null
+++ b/9.py
@@ -0,0 +1,28 @@
+# import turtle
+# turtle.color("blue")
+# turtle.begin_fill()
+# turtle.circle(100)
+# turtle.end_fill()
+# # turtle.done()
+# a=int(input("sfdsd:"))
+# b=int(input("sdfsd:"))
+# print("长方形的面积是：",a*b,sep="")
+# print("长方形的周长是：",(a+b)*2,sep="")
+import turtle
+def draw(x,y,ys):
+    turtle.penup()
+    turtle.goto(x,y)
+    turtle.pendown()
+    turtle.color("black",ys)
+    turtle.begin_fill()
+    for i in range(4):
+        turtle.forward(100)
+        turtle.right(90)
+    turtle.end_fill()
+draw(-100,100,"black")
+draw(0,0,"black")
+draw(0,100,"white")
+draw(-100,0,"white")
+turtle.hideturtle()
+turtle.done()
+