feat：完善舆情监测功能

src/hooks/echart.js

@@ -0,0 +1,28 @@
+import { ref } from 'vue'
+import * as echarts from 'echarts'
+import { guid } from '@/utils/util'
+
+export function useEchart() {
+  let chart = ref(null)
+  let id = ref(guid())
+  const initChart = () => {
+    const dom = document.getElementById(id.value)
+    chart.value = echarts.init(dom)
+  }
+  const setOption = (params) => {
+    chart.value.setOption(params)
+  }
+  const resize = () => {
+    if (chart) {
+      chart.dispose()
+      chart = null
+      initChart()
+    }
+  }
+  onMounted(() => {
+    // 监听窗口大小变化
+    window.addEventListener('resize', resize)
+  })
+
+  return { id, chart, setOption, initChart }
+}