save project

mima.py

 usename="小贝"
 userpassword="xingqiu"
 
-name=input("请输入账号:")
-password=input("请输入密码:")
-if usename == name and password == userpassword
-   print("登录成功！")
+while True:
+    name=input("请输入账号:")
+    password=input("请输入密码:")
+
+    if name == usename and password == usepassword:
+        print("登录成功！")
+        break
+    print("用户密码输入错误")
+print("欢迎！！！！！")