function * gen () {
    let result = yield axios.get('https://api.github.com/users/github')
    console.log(result.bio)
}
let g = gen()
g.next().value.then(v=>{
    return JSON.stringify(v)
}).then((data)=>{
    let blob = new Blob([data])
    blobUrl = window.URL.createObjectURL(blob)
    const a = document.createElement('a')
    document.querySelector('#container').appendChild(a)
    a.download='新建文件名.txt'
    a.innerHTML = 'clickme'
    a.href = blobUrl
})