save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
+i=3
 while True:
 while True:
     name = input("请输入用户名:")
     name = input("请输入用户名:")
     password = input("请输入密码:")
     password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
-        break
-    if name!=username:
-        print("用户名失败")
-        continue
-    if password != userpassword:    
-        print("密码失败")
+    i-=1
+    if i==0:
+        print('账号被冻结')
+        exit()
+    else:
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name!=username:
+            print("用户名失败")
+            continue
+        if password != userpassword:    
+            print("密码失败")
 
 
     
     
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")