User-agent: *
Disallow: /upload/student_line_qr/
Disallow: /images/student_line_qr_m/
Disallow: /images/student_wechat_qr/
Disallow: /images/student_wechat_qr_m/
Disallow: /upload/teacher_line_qr/
Disallow: /images/teacher_line_qr_m/
Disallow: /images/teacher_wechat_qr/
Disallow: /images/teacher_wechat_qr_m/