auto save

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!")
+        break
+    if name != username:
+        print("用户名错误，请重新输入")
+        continue
+    if password != userpassword:
+        print("密码错误，请重新输入")
+print("欢迎来到贝尔编程!")
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test_1.py

+sex = input('请输入性别')
+age = int(input('请输入年龄'))
+if age >= 19 and (sex == '男' or sex == '女'):
+    print ('该上班了')
+else:
+    print("去上学吧")
\ No newline at end of file

test_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("用户名错误，请重新输入：")
+        continue
+    elif password!= userpassword:
+        print("密码错误，请重新输入")
+        continue
+    else:
+        print('登录失败')
+        break
+print("欢迎来带贝尔编程")
+        
+        
\ No newline at end of file