save project

dfhfghdfh

+i=3
 username = "python"
 userpassword = "123456"
 while True:
-    name = input("请输入用户名")
-    password = input("请输入用户密码")
-    if name == username and password == userpassword
-        print("登录成功")
-        break
-    elif name !=username:
-        print("用户名错误")
+    if i>0
+        name = input("请输入用户名")
+        password = input("请输入用户密码")
+        i-=1
+        if name == username and password == userpassword
+            print("登录成功")
+            break
+        elif name !=username:
+            print("用户名错误")
+        else:
+            password != userpassword:
+            print("密码错误")
     else:
-         password != userpassword:
-        print("密码错误")
-print("欢迎来到贝尔编辑")
+        print("账户锁定")
+        exit()
+print(欢迎来到贝尔编辑)