js 使用a标签 下载资源

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        let data = new Blob(['hello ajanuw'], {type: 'application/text'})let src = window.URL.createObjectURL(data)let dl = document.createElement('a')dl.href = src;dl.download = 'hello.txt'dl.click()

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let data = new Blob(['hello ajanuw'], {type: 'application/text'
})
let size = data.size;
let data1 = data.slice(0, size / 2, data.type)
let data2 = data.slice(size / 2, size, data.type)
let src1 = window.URL.createObjectURL(data1)
let src2 = window.URL.createObjectURL(data2)let dl = document.createElement('a')
dl.href = src1;
dl.download = `hello(1).txt`
dl.click() // URL.revokeObjectURL(data1)dl.href = src2;
dl.download = `hello(2).txt`
dl.click()