imagemagick identify获取gif详细信息，包括每一帧的延时时间

magick identify -verbose dest2.gif

详细信息：delay30x100,即表示延时300毫秒

   white point: (0.3127,0.329)
  Matte color: grey74
  Background color: white
  Border color: srgb(223,223,223)
  Transparent color: none
  Interlace: None
  Intensity: Undefined
  Compose: Over
  Page geometry: 280x195+0+0
  Dispose: Undefined
  Delay: 30x100
  Iterations: 0
  Scene: 1 of 2
  Compression: LZW
  Orientation: Undefined
  Properties:
    date:create: 2019-01-24T10:31:24+08:00
    date:modify: 2019-01-24T10:31:24+08:00
    signature: 6227a5194cbab060f799a578e3101b0ae4849a71037f08a0cf081a346c0c444b
  Artifacts:
    verbose: true
  Tainted: False
  Filesize: 84182B
  Number pixels: 54600
  Pixels per second: 84465P
  User time: 0.188u