open(){
      getAction(this.url.list).then(res => {
        this.tableData = res.data
      })
    },
    clearSelection() {
      this.selected = "";
      this.$refs["table"].toggleRowSelection();
    },
    handleContentPreview(record) {
     console.log(this)
      this.$refs["assot"].show(record);
    },
    confirmAssociation() {
      putAction(this.url.put + '/' + this.task_id + '/bound', {content_id: this.selected}).then(res => {
        this.$message.success("绑定成功");
        this.$emit("ok")
        this.$refs["dialog"].close();
      })

    }
  }