在linux下 public boolean exists { SecurityManager security = System.getSecurityManager();

【在linux下 public boolean exists { SecurityManager security = System.getSecurityManager();】

在linux下 public boolean exists { SecurityManager security = System.getSecurityManager();

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在linux下,public boolean exists(){ security manager security = system . getsecuritymanager();在linux下,public boolean exists(){ security manager security = system . getsecuritymanager();简介:public boolean exists(){安全管理器security = system . getsecuritymanager();进入这里是错误的,不是吗?