根据输入的年，月，日 计算出星期几。
单片机数码管显示和键盘输入，-Based on the input of the year, month, day, calculate the day of the week. Microcontroller digital tube display and keyboard input,
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000967s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001354s ]
UPDATE `jrk_articles` SET `hits` = 3 WHERE `id` = 150767 [ RunTime:0.034388s ]
