电脑中病毒了，大家快救救我啊

各位高手，快来帮帮我啊，我的电脑现在中了一个不知名的病毒，只要我在打字时，它就自动打点，就向
下面这样：``````````````````````````````````````````````````````````````````````
而且即使在`DOS````````````下都是这个样子，你们看我现在打字``````````````````````````就是这个`````````````````````````````
样子了，大家快帮我想个办法啊，急死我了 ```````````````````，这个病毒困扰`我好多天了 ```