/**
* 上传附件转base64
* @param {File} file 文件流
*/
export const fileByBase64 = (file, callback) => {
let reader = new FileReader();
reader.readAsDataURL(file);
reader.onload = function (e) {
console.log(e.target.result);
callback(e.target.result)
};
}
/**
* base64转Blob
* @param {*} data
*/
export const base64ByBlob = (base64, callback) => {
let arr = base64.split(','), mime = arr[0].match(/:(.*?);/)[1],
bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
while (n--) {
u8arr[n] = bstr.charCodeAt(n);
}
console.log(new Blob([u8arr], { type: mime }))
callback(new Blob([u8arr], { type: mime }))
}
/**
* Blob转url
*/
let url = window.URL.createObjectURL(blob)
