Block笔记

此处不可以使用strongself和self会导致内存泄露，list就是typeList，会持有UserRepeatClickSelectIndexBlock，UserRepeatClickSelectIndexBlock持有self，self又会持有typeList　　　

typeof(self) __weak weakself = self;

        _typeList = [[ChooseEventList alloc] initWithFrame:CGRectMake(0, 0, YDScreenSize().width, DWF(45)) itemInfoArray:self.indexPageTypeList.copy configurationBlock:^(ChooseEventList *list) {

            typeof(weakself) __strong strongself = weakself;

            [list setUserRepeatClickSelectIndexBlock:^(ChooseEventList *list, NSInteger chooseIndex) {

                switch (weakself.indexPageTypeList[chooseIndex].integerValue) {

                    case YDIndexPageExamination:

                    case YDIndexPageWookShop:

                    {

                        [weakself setSelectedIndex:chooseIndex];

                    }

                        break;

                    default:

                        break;

                }

            }];

        }];