1：文字展开和折叠 https://www.npmjs.com/package/vue-multline

2：文字省略，根据屏幕缩放，响应式必备 vue-truncate-filter https://www.npmjs.com/package/vue-truncate-filter

<div v-if="$mq.resize && $mq.below('600px')">111</div>
// $mq.above(measurement, value)                  //大于
// $mq.below(measurement, value)                  //小于
// $mq.between(measurement, [valMin, valMax])     //两者之间
// $mq.beyond(measurement, [valMin, valMAx])      //两者之外

watch: {
      '$mq.resize': 'screenResize'
 },