本文實例講述了js+HTML5實現canvas多種顏色漸變效果的方法。分享給大家供大家參考。具體實現方法如下:
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 <!DOCTYPE html> <html> <body> <canvas id="myCanvas" width="200" height="100" style="border:1px solid #c3c3c3;"> Your browser does not support the HTML5 canvas tag. </canvas> <script type="text/javascript"> var c=document.getElementById("myCanvas"); var ctx=c.getContext("2d"); var grd=ctx.createLinearGradient(0,0,175,50); grd.addColorStop(0,"#FF0000"); grd.addColorStop(1,"#00FF00"); ctx.fillStyle=grd; ctx.fillRect(0,0,175,50); </script> </body> </html>希望本文所述對大家的web程序設計有所幫助。