此时它会应用一项技术，即当前栈替换(On Stack Replacement,OSR)，从而切换到新代码的执行上。
It then USES a technique known as on Stack Replacement (OSR) to switch to the execution of the new code.
通过这种方式，如果一个设计调用一个主机栈，您可以替换一个协调的虚拟机系统。
In this way, if a design calls for a hosting stack, you can substitute a compatible virtual system.
如果不事务添加到后面栈，然后取出或替换时，该片段被破坏。
If you do not add the transaction to the back stack, then the fragment is destroyed when removed or replaced.
如果不事务添加到后面栈，然后取出或替换时，该片段被破坏。
If you do not add the transaction to the back stack, then the fragment is destroyed when removed or replaced.
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