0x00崩溃

__NSCFConstantString objectForKeyedSubscript: unrecognized selector sent to instance 0x100003680

0x01直接上代码

    NSDictionary *dic = @{@"views":@[@{@"tag":@"100"},@{@"tag":@"200"}]};
    for (NSDictionary *subDic in dic) {
        NSString *key = [NSString stringWithFormat:@"%@",subDic[@"tag"]];
        NSLog(@"key:%@",key);
    }

subDic 控制台输出的内容是：views.

0x02结论

1.要遍历是应该是views对应的value(数组)。
2.对一个字典进行遍历时，取到的是key。

数值跟踪Slider

https://github.com/xjh093/JHSlider