网站建设分类方案,网站如何做美工,无锡 做网站,青岛网站seo公司分割base64字符串#xff0c;获取base64的格式和ASCII字符串#xff1b;使用atob()方法将base64中的ASCII字符串解码成二进制数据字符串#xff1b;将二进制数据按位放入8 位无符号整型数组中适用new File()方法将ArrayBuffer转换成file对象
const base64 获取base64的格式和ASCII字符串使用atob()方法将base64中的ASCII字符串解码成二进制数据字符串将二进制数据按位放入8 位无符号整型数组中适用new File()方法将ArrayBuffer转换成file对象
const base64 data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFEAAABRCAYAAACqj0o2AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC7SURBVHhe7dAxAQAwEAOhjedivgbQQJvnEkMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSAxIDEgMSDzbPhRMI3enSuP1AAAAAElFTkSuQmCCconst base64ToFile (base64: string) {const baseArr base64.split(,)const type baseArr[0].match(/:(.*?);/)?.[1]const baseBuffer atob(baseArr[1])let n baseBuffer.lengthconst arrayBuffer new Uint8Array(n)while(n--) {arrayBuffer[n] baseBuffer.charCodeAt(n)}return new File([arrayBuffer], avatar.png, { type })}
