摘要:
find()方法在部分匹配时和完全匹配时返回true,匹配不上返回false; matches()方法只有在完全匹配时返回true,匹配不上和部分匹配都返回false。 阅读全文
posted @ 2019-03-04 22:28
brookin
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摘要:
UTF-8 is a variable-length encoding. In the case of UTF-8, this means that storing one code point requires one to four bytes. However, MySQL's encodin 阅读全文
posted @ 2019-03-04 11:45
brookin
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