Qt循环播放一组图片

[{"title":"（ 46 个子文件 4.86MB ） Qt循环播放一组图片","children":[{"title":"showPic","children":[{"title":"showPic.pro.user <span style='color:#111;'> 16.54KB </span>","children":null,"spread":false},{"title":"widget.ui <span style='color:#111;'> 2.17KB </span>","children":null,"spread":false},{"title":"showPic.pro <span style='color:#111;'> 348B </span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'> 168B </span>","children":null,"spread":false},{"title":"image","children":[{"title":"17.jpeg <span style='color:#111;'> 38.82KB </span>","children":null,"spread":false},{"title":"18.jpeg <span style='color:#111;'> 57.57KB </span>","children":null,"spread":false},{"title":"15.jpeg <span style='color:#111;'> 48.23KB </span>","children":null,"spread":false},{"title":"19.jpeg <span style='color:#111;'> 135.04KB </span>","children":null,"spread":false},{"title":"16.jpeg <span style='color:#111;'> 47.27KB </span>","children":null,"spread":false}],"spread":true},{"title":"像素","children":[{"title":"352*288","children":[{"title":"39.jpeg <span style='color:#111;'> 16.06KB </span>","children":null,"spread":false},{"title":"38.jpeg <span style='color:#111;'> 11.40KB </span>","children":null,"spread":false},{"title":"36.jpeg <span style='color:#111;'> 5.85KB </span>","children":null,"spread":false},{"title":"40.jpeg <span style='color:#111;'> 6.38KB </span>","children":null,"spread":false},{"title":"37.jpeg <span style='color:#111;'> 11.06KB </span>","children":null,"spread":false}],"spread":true},{"title":"320*240","children":[{"title":"31.jpeg <span style='color:#111;'> 18.88KB </span>","children":null,"spread":false},{"title":"33.jpeg <span style='color:#111;'> 2.65KB </span>","children":null,"spread":false},{"title":"34.jpeg <span style='color:#111;'> 9.37KB </span>","children":null,"spread":false},{"title":"32.jpeg <span style='color:#111;'> 21.78KB </span>","children":null,"spread":false},{"title":"35.jpeg <span style='color:#111;'> 6.08KB </span>","children":null,"spread":false}],"spread":true},{"title":"704*576","children":[{"title":"27.jpeg <span style='color:#111;'> 35.84KB </span>","children":null,"spread":false},{"title":"26.jpeg <span style='color:#111;'> 22.54KB </span>","children":null,"spread":false},{"title":"28.jpeg <span style='color:#111;'> 36.95KB </span>","children":null,"spread":false},{"title":"30.jpeg <span style='color:#111;'> 59.60KB </span>","children":null,"spread":false},{"title":"29.jpeg <span style='color:#111;'> 38.45KB </span>","children":null,"spread":false}],"spread":true},{"title":"2560*1440","children":[{"title":"25.jpeg <span style='color:#111;'> 493.75KB </span>","children":null,"spread":false},{"title":"24.jpeg <span style='color:#111;'> 261.75KB </span>","children":null,"spread":false},{"title":"22.jpeg <span style='color:#111;'> 1019.30KB </span>","children":null,"spread":false},{"title":"23.jpeg <span style='color:#111;'> 750.97KB </span>","children":null,"spread":false},{"title":"21.jpeg <span style='color:#111;'> 575.45KB </span>","children":null,"spread":false}],"spread":true},{"title":"1920*1080","children":[{"title":"17.jpeg <span style='color:#111;'> 38.82KB </span>","children":null,"spread":false},{"title":"18.jpeg <span style='color:#111;'> 57.57KB </span>","children":null,"spread":false},{"title":"15.jpeg <span style='color:#111;'> 48.23KB </span>","children":null,"spread":false},{"title":"19.jpeg <span style='color:#111;'> 135.04KB </span>","children":null,"spread":false},{"title":"16.jpeg <span style='color:#111;'> 47.27KB </span>","children":null,"spread":false}],"spread":true},{"title":"640*480","children":[{"title":"3.jpeg <span style='color:#111;'> 37.46KB </span>","children":null,"spread":false},{"title":"4.jpeg <span style='color:#111;'> 22.25KB </span>","children":null,"spread":false},{"title":"1.jpeg <span style='color:#111;'> 66.38KB </span>","children":null,"spread":false},{"title":"5.jpeg <span style='color:#111;'> 71.57KB </span>","children":null,"spread":false},{"title":"2.jpeg <span style='color:#111;'> 73.09KB </span>","children":null,"spread":false}],"spread":true},{"title":"1280*720","children":[{"title":"14.jpeg <span style='color:#111;'> 136.92KB </span>","children":null,"spread":false},{"title":"6.jpeg <span style='color:#111;'> 135.48KB </span>","children":null,"spread":false},{"title":"9.jpeg <span style='color:#111;'> 223.85KB </span>","children":null,"spread":false},{"title":"10.jpeg <span style='color:#111;'> 74.88KB </span>","children":null,"spread":false},{"title":"8.jpeg <span style='color:#111;'> 125.67KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"widget.cpp <span style='color:#111;'> 2.63KB </span>","children":null,"spread":false},{"title":"widget.h <span style='color:#111;'> 658B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]