Sites that use IP address for ID run the risk of getting it very wrong - the examples you give are good ones and they often fail.
对于ID使用IP地址的网站上运行得到它非常错误的风险-你给的例子是好的，他们往往会失败。
The first parameter is the user id to run the program under, and the second parameter is the program to run.
第一个参数是运行程序的用户id，第二个参数是要运行的程序。
The managed role is typed with the generic business object and points to the key attribute that will hold the relationship instance id at run time.
托管角色采用通用业务对象，指向将在运行时保存关系实例 ID 的键属性。
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