The escape method accepts a string of any kind and returns a SQL safe version of the same string.
escape 方法接受一个任意类型的字符串并返回相同字符串的 SQL 安全版本。
The escape method returns a string value (in Unicode format) that contains the contents of [the argument].
escape方法以Unicode格式返回一个包含传入参数内容的string类型的值。
If you've never seen the escape method before, it's used to escape any characters that can't be sent as clear text correctly.
如果以前没用见过escape方法,它用于转义不能用明文正确发送的任何字符。
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