商鞅站在树上一般指商鞅站在树上造信。“商鞅立树”是战国时期秦国都城的一件大事。新法实施前，秦国站在南门以取信于民。新法实施后，王子犯法，惩罚主人。这两件事说明，信用是国家的宝藏，善于管理国家的人一定会
Imagine I have a stack-based toy language that comes with the operations Push, Pop, Jump and If. I have a program and its input is the toy language. For instance I get the sequence
加载中,请稍侯......