save project

diy2.py

@@ -5,7 +5,7 @@ while True:
     if i>0:
         name = input("请输入用户名:")
         password = input("请输入密码:")
-        i-=1
+        i=i-1
         if name == username and password == userpassword:
             print("登录成功!")
             break 
@@ -13,10 +13,12 @@ while True:
             
             if name !=username:
                 print("用户名错误")
+                print("你还有"+str(i)+"次机会")
                 continue
             elif password !=userpassword:
                 print("密码错误")
+                
     else:
         print("zhanghaobeisuoding,qingchongxinkaiyigehao")
-exit()
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file