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/**绘制圆形*/ CGContextRef contextRef=UIGraphicsGetCurrentContext(); CGContextAddArc(contextRef, 150, 300, 100, 0, 3.14*2, 0); CGContextStrokePath(contextRef); /**绘制椭圆*/ CGContextAddEllipseInRect(contextRef, CGRectMake(50, 400, 200, 100)); CGContextStrokePath(contextRef);
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原文地址:http://www.cnblogs.com/thbbsky/p/4382264.html