{"type":"rich","version":"1.0","title":"Ch4 例子","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/WGecRsfYD4Nbf81e/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/58679c46c7d80f835b7fcd5e\" frameborder=\"0\" allowfullscreen></iframe>"}