语法：

steam_ugc_query_add_required_tag(ugc_query_handle , tag_name);

返回： 布尔值

描述

This function can be used to further filter any given UGC query, specifically to search only those UGC items with the given tag. The query handle is the value returned when you created the query (using, for example, steam_ugc_create_query_user()) and the second argument is a string you want to use as the tag to include. The function will return true if the query filter was correctly set, or false otherwise.

例如：

var query_handle = steam_ugc_create_query_all(ugc_query_RankedByTrend, ugc_match_Items, 1);
steam_ugc_query_add_required_tag(query_handle, "RPG");
steam_ugc_query_set_return_long_description(query_handle, true);
steam_ugc_query_set_allow_cached_response(query_handle, true);
query_ID = steam_ugc_send_query(query_handle);

The above code creates a query request and stores it's handle in a local variable for future use in the rest of the functions which further define the query request before sending the query.