5.0.0 - 普通 - 未处理
$tag = "test_tag";
$key = 'a';
Cache::tag($tag)->set($key,1);
$a = Cache::tag($tag)->get($key);
dump($a);
Cache::clear($tag);
$a = Cache::tag($tag)->get($key);
dump($a);
dump(Cache::tag($tag)->has($key));打印int(1)
int(1)
bool(true)
缓存标签无效
