static async searchFromYuShu(q,count,start,summary = 1){
let url = util.format(global.config.yushu.keywordUrl,encodeURI(q),count,start,summary);
let result = await axios.get(url);
return result.data;
}let result = await Book.searchFromYuShu(
encodeURI(v.get('query.q')),
v.get('query.count'),
v.get('query.start'));