auto save

2.py

+a=['is','happy','is','your','are','first','first','is','are','your']
+n=len(a)-1
+for i in range(0,n):
+    for j in range(i+1,n+1):
+        if a[i]>a[j]:
+            a[i],a[j]=a[j],a[i]
+key=a[0]
+i=1
+ans=1
+while i<=n:
+    if key==a[i]:
+        ans+=1
+        i+=1
+    else:
+        print(a[i-1]+':'+str(ans))
+        key=a[i]
+        ans=1
+        i+=1
+print(a[n-1]+':'+str(ans))
\ No newline at end of file

3.py

+import tkinter
+
+def login_to_reg():    # 登录界面转注册界面
+    app_login.root.destroy()
+    global reg
+    reg=My_register()
+    reg.show()
+
+def reg_to_login():   # 注册界面转登录界面
+    reg.root.destroy()
+    app_login.show()
+
+def register():     # 注册验证
+    pass
+
+def login():    # 登录验证
+    pass    
+
+class My_login():       # 登录窗口
+    def __init__(self):
+        self.root = tkinter.Tk()
+        self.root.title("登录窗口")
+        self.root.geometry('400x300+500+200')
+        self.root.resizable(width=False, height=False)  # True可以拉伸，False不能拉伸
+
+    def show(self):         # 登录界面的所有控件
+        # Label文本标签，界面提示信息
+        l = tkinter.Label(self.root, text='您好！请登录', bg='green', fg="white",
+            font=('宋体', 15), width=40, height=2)
+        l.place(x=0, y=0)
+        l = tkinter.Label(self.root, text='用户名：', font=("宋体", 12),
+            fg="black")
+        l.place(x=50, y=80)
+        l = tkinter.Label(self.root, text='密  码：', font=("宋体", 12), 
+            fg="black")
+        l.place(x=50, y=140)
+
+        # Entry单行文本输入框：用户名、密码
+        self.e1 = tkinter.Entry(self.root, show=None, font=('宋体', 14), 
+                  bg="light grey", width=18)  # 显示成明文形式
+        self.e2 = tkinter.Entry(self.root, show='*', font=('宋体', 14),bg="light grey",
+                  width=18)  # 显示成密文形式
+        self.e1.place(x=120, y=80)
+        self.e2.place(x=120, y=140)
+
+        # 登录、注册按钮
+        button1 = tkinter.Button(self.root, text='登录', bg="lightblue",
+                  fg="black", width=15, command=login)
+        button1.place(x=60, y=220)
+        button2 = tkinter.Button(self.root, text='注册', bg="lightgreen",
+                  fg="black", width=15, command=login_to_reg)
+        button2.place(x=230, y=220)
+        self.root.mainloop()    # 进入消息循环，监听事件
+
+    def get_input(self):      # 获取输入的用户名、密码
+        self.name = self.e1.get()
+        self.password = self.e2.get()
+        return self.name, self.password
+
+class My_register():        # 注册窗口
+    def __init__(self):
+        self.root = tkinter.Tk()
+        self.root.title("注册窗口")
+        self.root.geometry('400x320+500+200')
+        self.root.resizable(width=False, height=False)  # True可以拉伸，False不能拉伸
+   
+    def show(self):     # 注册界面的所有控件
+        # 用户名、密码、确认密码输入框
+        self.e1 = tkinter.Entry(self.root, show=None, font=('宋体', 14), 
+                  bg="light grey", width=18)  # 显示成明文形式
+        self.e1.place(x=140, y=80)
+        self.e2 = tkinter.Entry(self.root, show='*', font=('宋体', 14),bg="light grey",
+                  width=18)
+        self.e2.place(x=140, y=140)
+        self.e3 = tkinter.Entry(self.root, show='*', font=('宋体', 14),bg="light grey",
+                  width=18)
+        self.e3.place(x=140, y=200)
+
+        # Label文本标签，窗口界面文字：用户名、密码、确认密码
+        lab = tkinter.Label(self.root, text='您好！请填写注册信息',
+              font=('宋体', 15),fg="white", width=40, height=2, bg="green")
+        lab.place(x=0, y=0)
+        lab1 = tkinter.Label(self.root, text='用户名：', font=("宋体", 12),
+               fg="black")
+        lab1.place(x=60, y=80)
+        lab2 = tkinter.Label(self.root, text='密  码：', font=("宋体", 12),
+               fg="black")
+        lab2.place(x=60, y=140)
+        lab3 = tkinter.Label(self.root, text='确认密码：', font=("宋体", 12),
+               fg="black")
+        lab3.place(x=50, y=200)
+
+        # 注册界面的提交、取消按钮
+        button1 = tkinter.Button(self.root, text='提交', bg="lightblue",
+                  width=15,command=register)
+        button1.place(x=230, y=250)
+        button2 = tkinter.Button(self.root, text='取消', bg="lightgreen",
+                  width=15, command=reg_to_login)
+        button2.place(x=80, y=250)
+        # 进入消息循环
+        self.root.mainloop()
+
+    def get_input(self):         # 获取提交的注册信息
+        self.name = self.e1.get()
+        self.password1 = self.e2.get()
+        self.password2 = self.e3.get()
+        return self.name, self.password1, self.password2
+
+app_login = My_login()
+app_login.show()
\ No newline at end of file

4.py

+a=[7,2,9,6,4,5]
+n=0
+for i in range(len(a)-1):
+    for j in range(len(a)-i-1):
+        if a[j]>a[j+1]:
+            a[j],a[j+1]=a[j+1],a[j]
+    if i==2:
+        print(a)
+        break
+
+
+
+
+

add.py

+a=int(input('1:'))
+b=int(input('2:'))
+if a>b:
+    a,b==b,a
+if a>1 and b>1:
+    if a==2:
+        print("2 是质数")
+    for i in range(a,b+1):
+        for j in range(2,i):
+            if i%j==0:
+                break
+            else:
+                if j==i-1:
+                    print(i,"是质数")
\ No newline at end of file

diy2.py

-username = "python"
-userpassword = "123456"
-while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
\ No newline at end of file
+a=[1,2,3,4,5,6,7,8,9]
+print(a[-1:-8:-2])
+a.pop()
+print(a)
+# print(a)
\ No newline at end of file

jl.txt

+{"": ""}
\ No newline at end of file

kk.py

+def gcd(a,b):
+    if b>a:
+        a,b=b,a
+    if  a%b==0:
+        return b   
+    return gcd(b,a%b)  
+print(gcd(12,18))