LSSPieChart

使用

+ (instancetype)pointItemWithRawX:(NSString *)rawx andRowY:(NSString *)rowy
  如：
    LSSPieChartItem *item1 = [LSSPieChartItem pointItemWithRawX:@"衣服费" andRowY:@"1"];
    ......
    LSSPieChartData *data  = [[LSSPieChartData alloc]init];
    data.items = @[item1].mutableCopy;
    data.fillColors = @[[UIColor redColor]].mutableCopy;
    chart.percentOfInnerHoleRadius = 0.75f;
    chart.data = data;
    [chart strokeChart];