With shadow trees this code logic can rely on an SVG sub-tree that is not easily available to external code, though it can still be accessed if needed.
通过影像树，这些代码逻辑可以依靠那些不容易被外部代码访问的svg子树——尽管在需要时仍然能够访问。
2
The update indicator array is initialized to -7 as shown in the Figure 5 code snippet from the RPG HANDLE_UPDATE sub-procedure.
图5中的来自RPG handle_update子过程的代码段显示，更新指示符数组被初始化为- 7。
3
Because all virtual portals run in the same JVM, it is unlikely that sub-administrators will be allowed to deploy their own code into their virtual portal.