save project

diy2.py

@@ -3,13 +3,12 @@ userpassword = "123456"
 while True:
 while True:
     n = input("请输入用户名:")
     n = input("请输入用户名:")
     p = input("请输入密码:")
     p = input("请输入密码:")
-    if n == username and p == userpassword:
+    n == username and p == userpassword:
         print("登录成功!")
         print("登录成功!")
         break
         break
-    if n!=username:
-        print("用户名错误！")
-        continue
-    if p!=userpassword:
+    elif n!=username:
+        print("用户名错误！")       
+    else p!=userpassword:
         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!")