通过Blob方式导出、导入文件

导出文件

let obj = {}
let content = new Blob([JSON.stringify(obj)])
let urlObject = window.URL || window.webkitURL || window
let url = urlObject.createObjectURL(content)
let el = document.createElement('a')
el.href = url
el.download = "todo文件导出.txt"
el.click()
urlObject.revokeObjectURL(url)