save project

888

+username='SANS'
+upassworserd='114514'
+while True:
+    name=input("输入用户名")
+    mima=input("输入密码")
+    if name==username and mima==upassworserd:
+        print("成功登陆")
+        break
+    if name!=username:
+        print("账号错误")
+        continue
+    if  mima!=upassworserd:
+        print("密码错误")
+    print("密码或账号输入错误，请重新输入")
+print("444")
+
+