题目内容
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[单选题]
创建一个圆形渐变颜色,起点在圆心,终点在圆环的函数是()
A.draw(booleanreserve,functioncallback)
B.createLinearGradient(numberx0,numbery0,numberx1,numbery1)
C.createCircularGradient(numberx,numbery,numberr)
D.createPattern(stringimage,stringrepetition)
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