命令: "C:\Program Files\LibreOffice\program\soffice.exe" --headless --convert-to pdf "C:\Users\Administrator\Desktop\测试文档.docx" --outdir "C:\Users\Administrator\Desktop\TEST2.pdf"
输出: 
返回码: 0
转换成功: C:\Users\Administrator\Desktop\TEST2.pdf/测试文档.pdf