Mini Program uses canvas to generate posters

I called and executed the showPoster method on the right, but there is nothing on the canvas, but it just doesn"t show up

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Mar.24,2021

when drawing a picture, convert the network picture into a local picture first. If the picture is too large in wx.getImageInfo, you need to delay ctx.draw (),
wx.canvasToTempFilePath to get the finished picture

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e35dac-64984.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e35dac-64984.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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