save project

diy1.py

+i = 3
 username = "python"    
 username = "python"    
 userpassword = "123456"    
 userpassword = "123456"    
 while True:
 while True:
+    if i == 0:
+        print("次数已用尽，无法登录")
+        exit()
     n = input("账号：")
     n = input("账号：")
     p = input("密码：")
     p = input("密码：")
-
+    i=i-1
     if n == username and p == userpassword:
     if n == username and p == userpassword:
         print("登陆成功！")
         print("登陆成功！")
         break
         break