save project

diy2.py

-username = 'python'
-userpassword = '123456'
+I = 3
+username = "python"
+userpassword = "123456"
 while True:
 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!')
-    if (name != username and password == userpassword):
-        print('用户名错误')
-        
-    if (name == username and password != userpassword):
-        print('密码错误')
-print('欢迎来到贝尔编程!')
+    if I >3
+        elif 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
\ No newline at end of file
+            print("密码错误，请重新输入") 
+    else:
+        print("你的账号已锁定请重新打开本软件")
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file