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 exportExcel() {
 //µ¼³öÌõ¼þ£¬²»·ûºÏÌõ¼þÔòreturn
      if (!this.form.date[0] || !this.form.date[1]) {
        this.$message.info("ÇëÊäÈë²éѯʱ¼ä·¶Î§");
        return;
      }
      if (!this.form.selectedOptions[2]) {
        this.$message.info("ÇëÑ¡Ôñ¾ßÌå¼à²âµã");
        return;
      }
   //µ¼³öµÄ½Ó¿Ú
      historyExport({
        startTime: this.form.date[0],
        endTime: this.form.date[1],
        pointId: this.form.selectedOptions[2],
      }).then((msg) => {
        this.$message({
          type: "success",
          message: this.$t("message.operationSuccess"),
        });
        let exportObj = {
          taskId: msg,
          taskName: "Õ¾µãÁбí",
          taskStatus: 0,
          rootPath: "historyPath",
        };
        //½«µ¼³öÈÎÎñ¶ªÈëµ¼³öÈÎÎñÁбíÖÐ
        //Òì²½²Ù×÷´æ´¢
        this.$store.dispatch("PushExportNotice", exportObj);
      });
    },