根据小程序社区回复:使用ctx.arc + ctx.lineTo就能避免迟薯Android错误,Android只使用ctx.arcTo不兼容!!!
解决方猜旦山案:
试用以坦州下程序(defun c:ccc()
(setq cm (getvar "cmdecho")
os (getvar "osmode")
)
(setvar "cmdecho" 0)
(command "_undo" "be")
(if (setq pt0 (getpoint "败信租\左下角:"))
(if (setq pt1 (getcorner pt0 "\n右上角:"))
(progn
(setvar "osmode" 0)
(command "_rectang" pt0 pt1)
(while (setq pdbz (getint "\n要改变长宽吗<输入任意整数则改变,回车则结束>:"))
(setq dxy (mapcar '- pt1 pt0)
ent (entlast)
)
(if (= (setq cd (getreal (strcat "\n当前长度为:" (rtos (car dxy) 2 3) ", 请输入改动值:"))) nil)
(setq cd (car dxy))
)
(if (= (setq kd (getreal (strcat "\n当前宽度为:" (rtos (cadr dxy) 2 3) ", 请输入改察兆动值:"))) nil)
(setq kd (cadr dxy))
)
(if (not (equal dxy (list cd kd)))
(command "_erase" ent ""
"_rectang" pt0 (mapcar '+ pt0 (list cd kd))
)
)
)
)
)
)
(command "_undo" "e")
(setvar "osmode" os)
(setvar "cmdecho" cm)
(princ)
)
1、首先,在微信小程序中,可以使用wx.createCanvasContext()函数来创建一衫晌友个画布,用于谨或绘制打印模板。2、然后,可以使用CanvasContext.fillText()函数来绘制文本,CanvasContext.fillRect()函数来绘制矩形,CanvasContext.drawImage()函数来绘制图片等。
3、最后,或槐可以使用CanvasContext.draw()函数来将绘制的内容渲染到画布上,并使用wx.canvasToTempFilePath()函数将画布转换为图片,以便打印。
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