我有ScrollView并将UIPinchGestureRecognizer添加到ScrollView。现在在手势事件上我放大或缩小ScrollView，它的处理Action如下:staticfloatlastScale=1.0;-(void)handlePinchGesture:(UIPinchGestureRecognizer*)gestureRecognizer{if([gestureRecognizerstate]==UIGestureRecognizerStateBegan){//Resetthelastscale,necessaryiftherearemultipleobj