auto save

diy2.py

@@ -2,17 +2,19 @@ i=3
 username = "python"
 userpassword = "123456"
 while True:
-    if i>0
+    if i>0:
         name = input("请输入用户名:")
         password = input("请输入密码:")
+        i=i-1
         if name == username and password == userpassword:
-            i-=1
             print("登录成功!")
             break
-        elif name!=username:
-            print("用户名和密码错误!请重新输入")
+        if name!=username:
+            print("用户名错误!请重新输入")
             continue
-        elif password!=userpassword:
-            print("用户名和密码错误!请重新输入")
-        else:        
+        if password!=userpassword:
+            print("密码错误!请重新输入")
+        else:
+            print("您的帐号已被所定，请携带身份证至我司解锁")
+            exit()        
 print("欢迎来到贝尔编程!")
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