https://github.com/simple-uploader/vue-uploader
https://juejin.im/entry/599dad0ff265da248b04d7b8
https://blog.csdn.net/zk437092645/article/details/8745647/ 上传读取本地文件
https://blog.csdn.net/ymjring/article/details/7190918
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原文地址：https://www.cnblogs.com/qq735675958/p/8667272.html