查询市场交易对列表。
用法
visionWeb.vs.getMarketPairList();
入参
无
返回值
array，查询到的市场交易对列表。
示例
visionWeb.vs.getMarketPairList();
> [
{sell_token_id: '31303030303031', buy_token_id: '31303030303032'},
{sell_token_id: '31303030303032', buy_token_id: '31303030303031'},
{sell_token_id: '31303030303033', buy_token_id: '31303030303034'},
{sell_token_id: '5f', buy_token_id: '31303030303032'},
]