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String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE
,Manifest.permission.READ_EXTERNAL_STORAGE
,Manifest.permission.INTERNET
,Manifest.permission.READ_PHONE_STATE
,Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS
,Manifest.permission.RECEIVE_BOOT_COMPLETED
,Manifest.permission.SYSTEM_ALERT_WINDOW
,Manifest.permission.WAKE_LOCK
,Manifest.permission.DISABLE_KEYGUARD
};
// 如果没有授予该权限,就去提示用户请求
ActivityCompat.requestPermissions(this,permissions,321);