save project

diy2.py

+
+i=3
 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!")
-        print("欢迎来到贝尔编程!")
-        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")
-
-
+    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!")
+            print("欢迎来到贝尔编程!")
+            break
+        if 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")
+    else:
+        print("你不是真正的主人,这个账号以冻结")
+        exit()