uniapp H5端 下载文件

uni.request({
		url: 'xxx', //仅为示例，并非真实接口地址。
		responseType: 'arraybuffer',
		header: {
			'token': 'xxx',
		},
		complete: (res) => {
			let array = [res.data];
			let blob = new Blob([res.data], {
				type: "application/pdf"
			});
			if (typeof window.navigator.msSaveBlob !== 'undefined') {
				window.navigator.msSaveBlob(new Blob([blob]), fileName)
			} else {
				let url = window.URL.createObjectURL(blob)
				console.log('url=', url)
				let link = document.createElement('a')
				link.style.display = 'none'
				link.href = url
				link.setAttribute('download', file.name)
				document.body.appendChild(link)
				link.click()
				document.body.removeChild(link) //下载完成移除元素
				window.URL.revokeObjectURL(url) //释放掉blob对象
			}
		}
	});