If so, then the current entry must be a folder, and you push its name and recursion level onto an auxiliary stack as well as adding it to the tree.
如果具有子代，那么当前条目必须是一个文件夹，您要将其名称和递归级别推到辅助堆栈上并将它们添加到树中。
If the character is an operand, push it onto the stack.
如果字符是一个操作数，把它压入堆栈。
The list of directories ACTS like a stack — you push a directory onto the top of the stack, and pop a directory off the top again to get it back.
该目录列表的行为就像一个堆栈——您将一个目录压入堆栈顶部，并从顶部弹出一个目录以取回它。
When you want to go to another page, you push your view Controller (and associated view) onto the view Controller stack.
在你导向另外一个页面的时候，就把视图控制器放到视图控制器堆栈中。
If the character is an operator, pop two operands, perform the appropriate operation, and then push the result onto the stack.
如果字符是个操作符，弹出两个操作数，执行恰当操作，然后把结果压入堆栈。
If the character is an opening parenthesis, push it onto the stack.
如果字符是个开括号，把它压入堆栈。
If you push the Numbers 2, 4, and 6 onto a stack and then pop the stack twice, you will get 6 and 4, in that order.
如果你向堆栈压入数据2,4,6，然后弹出栈两次，你将按照顺序得到6与4。
Push the operator onto the stack.
把这个操作符压入(push)堆栈。
Let's first take a look at the addResource method, which will be used to push items onto the end of the history stack (see Listing 2).
首先看一看addresource方法，它用于将记录压入历史堆栈的堆栈顶部(参见清单2)。
For example, if you enable the Z shell option pushd_ignore_dups, pushd won't push a directory onto the directory stack if it's already there.
例如，如果已经启用了Zshell选项pushd_ignore_dups, pushd就不会将已存在的目录压入目录堆栈。
For example, a designer might push, or add, a keyboard handler and a mouse handler onto the stack.
例如，设计工具可以将键盘处理常式或滑鼠处理常式推入或加入至堆叠。
PUSH processor registers onto the current task's stack;
所有处理器寄存器的值推入当前任务栈；
PUSH processor registers onto the current task's stack;
所有处理器寄存器的值推入当前任务栈；
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