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Warning | 3719 | 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias fo
時間 2020-01-30
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MySQL的「utf8」實際上不是真正的UTF-8。「utf8」只支持每一個字符最多三個字節,而真正的UTF-8是每一個字符最多四個字節。mysql MySQL一直沒有修復這個bug,他們在2010年發佈了一個叫做「utf8mb4」的字符集,繞過了這個問題。sql 簡單概況:數據庫 MySQL的「utf8mb4」是真正的「UTF-8」。 MySQL的「utf8」是一種「專屬的編碼」,它可以編碼
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Warning: (3719, 「‘utf8’ is currently an alias for the character set UTF8MB3, which will be replaced
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Warning: (3719, 「‘utf8’ is currently an alias for the character set UTF8MB3, which will be replac...
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Building an MFC project for a non-Unicode character set is deprecated
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vs2013 出現Building an MFC project for a non-Unicode character set is deprecated
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7.
Quartus II -Warning (202000): An incorrect timescale is selected for the Verilog Output (.VO) file
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