auto save

1.py

+"""
+a=["关羽","刘备","张飞"]
+a.insert(2,"赵云")
+a.append("马超")
+a.extend(["黄忠","魏延"])
+print(a)
+"""
+"""
+a=[0,1,2,3,4,5,6]
+b=[0,1,4,5,6,7,8,9,10]
+a.extend(b[0:-3])
+print(a)
+"""
+a=[0,100]
+while True:
+    b=input("请输入0——100的数字可以是小数\n")
+    c=int(b)
+    for i in range(len(a)):
+        if c>a[i] and c not in a:
+            a.insert(i,c)
+            break
+        print(a)
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6.py

+x=username="hmh"
+y=userpassword="219"
+i=0
+j=0
+while True:
+    if i==3:
+        exit(0)
+    if i==1:
+        print("你还有二次机会")
+    if i==2:
+        print("你还有一次机会")
+    a=input("请输入用户名\n")
+    if a==x:
+        break
+    else:
+        i=i+1
+        print("用户名错误")
+while True:
+    if j==3:
+        exit(0)
+    if j==1:
+        print("你还有二次机会")
+    if j==2:
+        print("你还有一次机会")
+    b=input("请输入密码\n")
+    if b==y:
+        break
+    else:
+        j=j+1
+        print("密码错误")
+print("登录成功")       
+
+

diy1.py

-username = "python"    # 保存在服务器数据库中的用户账号（正确的账号）
-userpassword = "123456"    # 保存在服务器数据库中的用户密码（正确的密码）
+"""
+import turtle
+a=turtle.Pen()
+b=["pink","purple","yellow","green"]
+c=turtle.Screen()
+c.bgcolor("black")
+for i in range(520):
+    a.pencolor(b[i%4])
+    a.forward(i)
+    a.right(91)
+a.hideturtle()
+turtle.done()
+"""
+j=1
+i=1
+for i in range(1,10):
+    for j in range(1,i+1):
+        print(j,"x",i,"=",j*i,sep="",end="    ")
+    print()
 
 
-# 请用input()实现用户输入账号、密码的功能
-
-
-
-# 如果用户输入的账号、密码正确，提示登陆成功
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