日常工作相关链接地址

免费文件在线转换(支持EPUB文件转pdf,word等办公文件转换)：

CloudConvert>File converter service - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.https://cloudconvert.com/

绘图工具：

        免费在线手绘绘图工具：Excalidraw | Hand-drawn look & feel • Collaborative • SecureExcalidraw is a virtual collaborative whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.https://excalidraw.com/