在实践中，这就会造成误操作，浪费的时间回去修正错误。
In practice this means that wrong ICONS, characters and options get selected, with time wasted as you back out of whatever you just went into by mistake.
它是一个单一数据结构，容易受到误操作和磁盘故障的损坏。
It is a single data structure that's vulnerable to damage by carelessness or hardware failure.
每当对应的客户端套接字包含读、写或错误操作时，调用对应的回调函数。
Each time a corresponding client socket contains any read, write or error operations, the corresponding callback function is called.
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