vue 点击切换 图片的 src

html

          <div class="flex-img" @click="changOption">
            <img :src="flag== true ? require('@/assets/images/statistics/analytics-graph-chart.png'): require('@/assets/images/statistics/analytics-graph-chart3.png')" class="mr26 ml26" />
            <img :src="flag== true ? require('@/assets/images/statistics/analytics-graph-chart1.png'): require('@/assets/images/statistics/analytics-graph-chart2.png')" />
          </div>

数据 ：

   flag: true,

js  方法 ：

  changOption () {
        this.flag = !this.flag
      },

效果：