set up doin 和set to do

He set up a sign asking for old computer.
He set up a sign to ask for old computer .
主要是这两句的区别？？？？

set up doin 和set to do establish和set up的区别 set up造句 辨析：set about ,set out ,set down ,set up 句子中set up的用法和翻译，以及set的其他词组及翻译 set up与build up的区别? set up sb.如何翻译? SET UP的按装问题 set up once for all 怎么翻译 establish与set up有什么区别？