When clicking the backward and forward buttons for the application, we won't be adding new events to the stack but we will be moving the pointer within the stack.
单击应用程序的后退和前进按钮时,不会在堆栈中添加新的事件,而是移动堆栈的指针。
2
So, the way you construct an LCS is by starting in the lower-right corner cell and then following the pointer arrows backward.
所以,构建 LCS 的途径就是从右下角的单元格开始,沿着箭头一路返回。
3
This function moves the file pointer from its current position to a new position, forward or backward, specified by the number of bytes.