这样，恶意用户采用引号和特殊字符来企图动态修改查询结构的花招就不会得逞。
As such, clever tricks with quotes and special characters that are sometimes employed by malicious users in an attempt to dynamically modify the structure of the query become futile.
单个使用会导致语法错误而需要通过转义字符来修改语义的符号。
Symbols that cause syntactic errors for single use and require an escape character to change semantics.
要求使用转义字符才能修改语法的一些符号。
Symbols that require the escape character to change semantics.
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