小程序canvas生成海报保存到相册

[{"title":"（ 14 个子文件 44KB ） 小程序canvas生成海报保存到相册","children":[{"title":"minicode-test-3","children":[{"title":"images","children":[{"title":"qrcode.jpg <span style='color:#111;'> 15.01KB </span>","children":null,"spread":false},{"title":"icon_sharewx.png <span style='color:#111;'> 7.88KB </span>","children":null,"spread":false},{"title":"btn_bg.png <span style='color:#111;'> 5.03KB </span>","children":null,"spread":false},{"title":"icon_pic.png <span style='color:#111;'> 4.88KB </span>","children":null,"spread":false},{"title":"canvasBg.png <span style='color:#111;'> 7.66KB </span>","children":null,"spread":false},{"title":"icon_close.png <span style='color:#111;'> 1.87KB </span>","children":null,"spread":false}],"spread":true},{"title":"app.json <span style='color:#111;'> 218B </span>","children":null,"spread":false},{"title":"pages","children":[{"title":"index","children":[{"title":"index.js <span style='color:#111;'> 11.13KB </span>","children":null,"spread":false},{"title":"index.json <span style='color:#111;'> 42B </span>","children":null,"spread":false},{"title":"index.wxss <span style='color:#111;'> 2.03KB </span>","children":null,"spread":false},{"title":"index.wxml <span style='color:#111;'> 1.94KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"app.wxss <span style='color:#111;'> 0B </span>","children":null,"spread":false},{"title":"app.js <span style='color:#111;'> 40B </span>","children":null,"spread":false},{"title":"project.config.json <span style='color:#111;'> 607B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]