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htmlcanvas畫(huà)點(diǎn)(html canvas 繪圖)
clear移動(dòng)層#39#eventCanvas#39mouseupfunctione ifoptsdragAll else moveMapContextclearRect0, 0, 1100, 630 draging = false 小結(jié)功能原理都很簡(jiǎn)單,但能熟悉canvas的一些屬性和方法c...