js图片流转为blob和base64

		this.$axios.post('接口', '参数',{responseType:'blob'}).then((res) => { //转为blob let blob = new Blob([res.data], {type: "image/png"});let url = window.URL.createObjectURL(blob);console.log(url)//blob转为base64var reader = new FileReader();reader.readAsDataURL(blob);reader.onload = function (e) {console.log(e.target.result)} })