说到字符，很多用户也许会不以为然：小小的字符，不过是个非常基础的人机交互表达形式，它能产生什么威胁？但是，威胁偏偏就来自

最原始的方面，并且这种威胁往往是最危险的，也是最难以防范的。-Speaking of characters, many users may not: a small character, but is a human-computer interaction based on the expression of the form of what the threat of it? However, just on the threat from

The most primitive aspects, and this threat is often the most dangerous and most difficult to guard against.