关键字
antd 分片上传
html 文件api
前端大文件上传
阿里云 分片上传oss
https://help.aliyun.com/document_detail/84786.html
引用 https://segmentfault.com/q/1010000009304154/a-1020000010137079
如果文件较小，直接使用antd自带的upload
如果文件过大，需要把upload的beforeUploa的设定为false
之后进行文件切块处理，参考链接：https://www.genban.org/teach/teach-17154.html
简书
https://www.jianshu.com/p/bfaad1323a4c
掘金
https://juejin.im/post/5db29beb5188256467245a7b
https://juejin.im/post/5d35af63e51d454fa33b199e
https://juejin.im/post/5b9b6e81f265da0ab2281ae0
原文：https://www.cnblogs.com/dhjy123/p/11869046.html