When no parameter is specified, exc

When no parameter is specified, exchanges the top two elements of the stack. When a parameter is specified and is a user variable, exchanges the top element of the stack with the parameter. When a parameter is specified and is a positive integer, Exch will swap the item on the top of the stack with the item that is specified by the offset from the top of the stack in the parameter. If there are not enough items on the stack to accomplish the exchange, a fatal error will occur (to help you debug your code :).

Results (Chinese Traditional) 1:

當未不指定任何參數時，交換堆疊頂部的兩個元素。當指定的參數，並且是使用者變數時，交換與參數堆疊的頂層元素。當指定的參數，並且是一個正整數時，換錢將互換專案在堆疊的頂部由從該參數在堆疊的頂部的偏移量指定的專案。如果堆疊來完成交流上不存在足夠多的條目，將發生致命錯誤 （以説明您調試代碼：）。