auto save

diy2.py

@@ -2,12 +2,13 @@ username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
     name = input("请输入用户名:")
     name = input("请输入用户名:")
+    if name != username:
+        print("用户名错误") 
+        continue
     password = input("请输入密码:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
         break
         break
-    elif name != username:
-        print("用户名错误") 
     else:
     else:
         print("密码错误") 
         print("密码错误") 
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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