drp-ui/src/views/material/tools/attachment-file.js

// 附件处理——格式
const judgeFileFormat = (fileType) => {

  console.log(fileType, 'fileType');

  let fileFormat = '';

  switch (fileType) {

    case 'txt':

      return fileFormat = 'text/plain';

    case 'docx':

      // return fileFormat = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document';
      return fileFormat = 'application/msword';
    // return fileFormat = 'application/x-msdownload';

    case 'doc':

      return fileFormat = 'application/msword';

    case 'xlsx':

      return fileFormat = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet';

    case 'xls':

      return fileFormat = 'application/vnd.ms-excel';

    case 'pptx':

      return fileFormat = 'application/vnd.openxmlformats-officedocument.presentationml.presentation';

    case 'ppt':

      return fileFormat = 'application/vnd.ms-powerpoint';

    case 'pdf':

      return fileFormat = 'application/pdf';

    case 'zip':

      return fileFormat = 'application/zip';

    case 'rar':

      return fileFormat = 'application/x-rar-compressed';

    case 'jpg':

      return fileFormat = 'image/jpeg';

    case 'jpeg':

      return fileFormat = 'image/jpeg';

    case 'png':

      return fileFormat = 'image/png';

    case 'gif':

      return fileFormat = 'image/gif';

    case 'bmp':

      return fileFormat = 'image/bmp';

    case 'mp3':

      return fileFormat = 'audio/mpeg';

    case 'mp4':

      return fileFormat = 'video/mp4';

    case 'avi':

      return fileFormat = 'video/x-msvideo';
  }

}

export default judgeFileFormat;