The cure for object loitering in this case is to null out the reference after popping it from the stack, as shown in the commented-out lineof code in Listing 3.
修复这种情况下的对象游离的方法是，当对象从堆栈弹出之后，就消除它的引用，如清单3中注释掉的行所示。
2
Include a subject line, which could be a description of your skills or the job's reference number, if you are submitting information to a database.
包括一个主题栏，包含你的技能或职位参考号，在你提交信息给数据库时。
3
And your code runs inside the server, you can use the following lineof code to obtain a reference to config service.