我在我的应用程序中使用了Chart.js(版本:2.7.2)行，当我点击某些元素时打开对话框，我需要获取当前元素的标签(xAxes上的日期)。谷歌搜索我找到了示例并尝试制作下一个:varlineCanvas=document.getElementById("canvasVotesByDays");varctx=lineCanvas.getContext('2d');varlineChart=newChart(ctx,{type:'line',data:{labels:monthsXCoordItems,datasets:[{label:'CorrectVotes',...lineCan

这是查询:SELECTu.uidasUID,fuo.uidasFUO_UID,fo.pridasFO_NAMEFROMusersuLEFTOUTERJOINfirstpoint_users_organisationsfuoON(u.uid=fuo.uid)LEFTOUTERJOINfirstpoint_organisationsfoON(fo.nid=fuo.nid)WHEREu.status=1ANDu.uid>1ORDERBYu.uidLIMIT3;还有表格:users+------------------+------------------+------+-----+-----

我在touchesMoved中通过UIBezierPath绘制了一个形状。-(void)touchesMoved:(NSSet*)toucheswithEvent:(UIEvent*)event{UITouch*touch=[touchesanyObject];secondPoint=firstPoint;firstPoint=[touchpreviousLocationInView:self];currentPoint=[touchlocationInView:self];CGPointmid1=midPoint(firstPoint,secondPoint);CGPointmid2

我在touchesMoved中通过UIBezierPath绘制了一个形状。-(void)touchesMoved:(NSSet*)toucheswithEvent:(UIEvent*)event{UITouch*touch=[touchesanyObject];secondPoint=firstPoint;firstPoint=[touchpreviousLocationInView:self];currentPoint=[touchlocationInView:self];CGPointmid1=midPoint(firstPoint,secondPoint);CGPointmid2