auto save

2-4-diy4-2.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!")
+        break
+    elif name != username:
+        print("用户名不存在,请重新输入!")
+    else:
+        print("密码输入有误,请重新输入!")
+print("欢迎来到贝尔编程!")
\ No newline at end of file

2-4-diy4.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!")
+        break
+    if name != username:
+        print("用户名错误,请重新输入!")
+        continue
+    if password != userpassword:
+        print("密码输入有误,请重新输入!")
+print("欢迎来到贝尔编程!")
\ No newline at end of file

2-4-diy5.py

+i = 3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i -= 1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name != username:
+            print("用户名错误,请重新输入!")
+            continue
+        if password != userpassword:
+            print("密码输入有误,请重新输入!")
+    else:
+        print("你的账户已被锁定，请一个小时以后再来")
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file

2-4-diy6.py

+i = 3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i -=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name != username:
+            print("用户名错误,请重新输入!")
+            print("温馨提示:您还有"+str(i)+"次登录机会")
+            continue
+        if password != userpassword:
+            print("密码输入有误,请重新输入!")
+            print("温馨提示:您还有" + str(i) + "次登录机会")
+    else:
+        print("你的账户已被锁定，请一个小时以后再来")
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file

2-7-diy1.py

+students = ["悟空", "小贝", "八戒", "波奇"]
+
+# 八戒因为要回老家，转学了，请将八戒从班级列表名单中删除
+students.remove("八戒")
+print(students)
+
+# 班上来了一个新同学，名叫"诺依"，请将"诺依"加入到班级名单里面
+students.append("诺依")
+print(students)
+
+# 班上准备开始辩论赛，分为红（red）、蓝(blue)组，
+# 请用切片将班级列表的前2名加入到红组，后2名加入到蓝组
+red = students[:2]
+blue = students[2:]
+print(red)
+print(blue)
\ No newline at end of file

2-7-diy2.py

+# 需要进行加密的语句
+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
+for i in message:
+    print(i)
\ No newline at end of file

2-7-diy3.py

+# 需要进行加密的语句
+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
+length = len(message)
+i = 0
+while i < length:
+    element = message[i]
+    print(element)
+    i += 1
\ No newline at end of file

2-7-diy4.py

+import random
+
+# 私钥
+key = "abcdefgh使用编程实现位移替换加密，制作密码机关真是太好玩了哈哈！"
+# 要加密语句
+message = "诺依，周末一起去看动漫展吧！"
+# 加密后的语句(密文)
+key_message = ""
+
+# 加密过程
+for i in message:
+    str1 = i
+    str2 = random.choice(key)
+    str3 = random.choice(key)
+    text = str1+str2+str3
+    key_message = key_message + text
+print(key_message)
\ No newline at end of file

2-7-diy5.py

+import random
+
+# 私钥
+key = "abcdefgh使用python实现简单的位移替换加密，制作密码机关真是太好玩了哈哈哈！"
+# 要加密语句
+message = "诺依，周末一起去看动漫展吧！"
+# 最终加密后的语句
+key_message = ""
+# 干扰字符
+noise = "port:@#$%^&"
+for i in message:
+    str1 = i
+    str2 = random.choice(key)
+    str3 = random.choice(key)
+    text = str1+str2+str3
+    key_message = key_message + text
+
+list_message = list(key_message)
+list_message.insert(5, noise)
+result_message = "".join(list_message)
+print(result_message)
\ No newline at end of file

2-7-diy6.py

+import random
+
+# 私钥
+key = "abcdefgh使用python实现简单的位移替换加密，制作密码机关真是太好玩了哈哈哈！"
+# 要加密语句
+message = "诺依，周末一起去看动漫展吧！"
+# 最终加密后的语句
+key_message = ""
+# 干扰字符
+noise = "port:@#$%^&"
+for i in message:
+    str1 = i
+    str2 = random.choice(key)
+    str3 = random.choice(key)
+    text = str1+str2+str3
+    key_message = key_message + text
+
+list_message = list(key_message)
+
+index = random.randint(0, len(key_message))
+list_message.insert(index, noise)
+
+result_message = "".join(list_message)
+print(result_message)
\ No newline at end of file

2-7-diy7.py

+import random
+
+# 私钥
+key = "abcdefgh使用python实现简单的位移替换加密，制作密码机关真是太好玩了哈哈哈！"
+# 要加密语句
+message = input("请输入：")
+# 最终加密后的语句
+key_message = ""
+# 干扰字符
+noise = "port:@#$%^&"
+for i in message:
+    str1 = i
+    str2 = random.choice(key)
+    str3 = random.choice(key)
+    text = str1+str2+str3
+    key_message = key_message + text
+
+list_message = list(key_message)
+
+index = random.randint(0, len(key_message))
+list_message.insert(index, noise)
+
+result_message = "".join(list_message)
+print(result_message)
\ No newline at end of file