如何去除segWords中的""(没有数据的双引号)
> segWords
[1] "打新" "抽血" "效应" "初现" "午后" "跳水" "真相" "外媒" "监管" "调查" "有色" "恶意"
[13] "做空" "有色" "行业" "并购" "忙" "百元" "股达" "" "次新股" "中小" "创股" "主力军"
[25] "" "上方" "胶着" "行情" "延续" "创业板" "跌" "逾" "" "百元" "数量" "火速"
[37] "翻番" "三大" "基因" "造就" "牛股"