auto save

diy2.py

+i=3
 username = "a"
 username = "a"
 userpassword = "6"
 userpassword = "6"
 while True:
 while True:
     if i>0:
     if i>0:
         name = input("请输入用户名:")
         name = input("请输入用户名:")
         password = input("请输入密码:")
         password = input("请输入密码:")
-        i-=1
-    if name == username and password == userpassword:
-        print("登录成功!")
-        break
-    if name!=username:    
-        print("用户名错 请重新输入")
-        continue
-    if password!=userpassword:
-        print("密码错 请重新输入")
-else:
-    print("锁")
-    exit()
+        i -= 1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name!=username:    
+            print("用户名错 请重新输入")
+            continue
+        if password!=userpassword:
+            print("密码错 请重新输入")
+    else:
+        print("锁")
+        exit()
 print("欢")
 print("欢")
\ No newline at end of file