auto save

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-i = 3
 while True:
 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("用户名不存在!请重新输入！")
-            p[
+    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("用户名不存在!请重新输入！")
         
         
     elif password != userpassword:
     elif password != userpassword:
         print("密码输入错误，请重新输入！")
         print("密码输入错误，请重新输入！")
-        exit()
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file