网络账户异常时，为了防止网络侵害而保护注册者的权益而设置的一种保护机制。 登陆某一网站窗口时，账户名和密码错误多次输入时账号会被锁住。系统提示会提示尝试的次数已经过多,请过一段时间再试。 网络账户注册者发现账号异常情况如被盗用，可以申请提出锁定账号，设置锁定时间，超过锁定时间后帐号将自行解锁。 锁定时间
仅次于组织方面障碍的是似乎看起来并不存在的技术障碍，但对于任务、数据版本控制、并发性(锁定)和生命周期管理而言，这决不简单。
Next to the organizational hurdles, the technical ones almost seem scant, but when it comes to the task, data versioning, concurrency (locking), and life cycle management are never simple.
“我什么也没找到，”格列格雷说，“我的分析没有锁定在任何周期是36天的东西上。”
"I don't find anything," Gregory said. "My analysis does not want to lock on to anything around 36 days."
应该在main方法结束的地方、调用任何启动生命周期方法之前调用lock方法锁定服务定位器，这样可以有效地防止误用。
That lock method would be called at the end of the main method before any start lifecycle were invoked and would very effectively prevent misuse.
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