浙大中控操作员软件狗是一种计算机软件的加密方式，是“硬件加密锁”的俗称。是一个插在计算机并口（打印输出口）或USB口上的硬件。
Zhejiang University's central control operator softdog is an encryption method of computer software, commonly known as "hardware encryption lock". It is a hardware plugged into the parallel port (printout port) or USB port of the computer.
一般都有几十或几百字节的非易失性存储空间可供读写，软件开发者可以通过接口函数和软件狗进行数据交换（即对软件狗进行读写），来检查软件狗是否插在接口上；或者直接用软件狗附带的工具加密自己EXE文件（俗称”包壳”）。
Generally, there are tens or hundreds of bytes of non-volatile storage space for reading and writing. Software developers can check whether the dongle is plugged into the interface by exchanging data with the dongle through the interface function (that is, reading and writing the dongle); Or directly encrypt your EXE file (commonly known as "shell") with the tool attached to the dongle.
这样，软件开发者就可以在软件中设置多处软件锁，利用软件狗做为钥匙来打开这些锁；如果没插软件狗或软件狗不对应，软件将不能正常执行。
In this way, software developers can set multiple software locks in the software and use the software dog as the key to open these locks; If no dongle is inserted or the dongle does not correspond, the software will not execute normally.
安装方法：
Installation method:
软件狗的安装很简单，首先将电脑关机，拔下电脑上所有的电源线。将软件狗插在电脑后方的打印插口上（大小合适的插口）拧紧固定螺丝。如您的打印插口已连接了打印机，请先将打印机电缆拔下，安装好软件狗后再将打印机电缆连接到软件狗后方的接口上，拧紧固定螺丝。
The installation of the dongle is very simple. First, turn off the computer and unplug all the power cords on the computer. Plug the dongle into the print socket at the back of the computer (the socket with appropriate size) and tighten the fixing screw. If your print socket is connected to the printer, please unplug the printer cable, install the dongle, connect the printer cable to the interface behind the dongle, and tighten the fixing screws.
注意：在插拔软件狗或打印机连线的过程中，应当保证电脑已经关机，并且电脑上所有电源线都已拔下。否则有可能导致电脑主板损坏。要检查软件狗是否装好，打开“我的电脑”，找到“RBQYB”的文件夹。双击其中的dog.Exe文件。将会打开软件狗检测程序。点击“校验”按钮，可看到检测软件狗的结果。
Note: In the process of plugging the dongle or printer connection, ensure that the computer has been turned off and all power cables on the computer have been unplugged. Otherwise, the computer motherboard may be damaged. To check whether the dongle is installed properly, open "My Computer" and find the folder of "RBQYB". Double-click the dog.Exe file. The dongle detection program will open. Click the "Check" button to see the result of detecting the dongle.
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