get 请求
const elink = document.createElement('a')
elink.href = `https://${this.$config.URL_PREFIX}www.baidu.com/data-lineages/download?vertex=${this.exportParams.vertex}&direct=bothV×=1&isFilterPredicate=0`
document.body.appendChild(elink)
elink.click()
document.body.removeChild(elink)