8*8点阵led显示功能介绍，包括点阵构成的原理，显示一竖柱，显示一横柱-8* 8 dot matrix led display, including the principle of dot-matrix composition, show一竖column, showing a horizontal column
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001083s ]
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