VB.net PictureBox滚轮局部放大图片

[{"title":"（ 46 个子文件 13.58MB ） VB.net PictureBox滚轮局部放大图片","children":[{"title":"F2Torrent.suo <span style='color:#111;'> 23.50KB </span>","children":null,"spread":false},{"title":"F2Torrent.sln <span style='color:#111;'> 869B </span>","children":null,"spread":false},{"title":"F2Torrent","children":[{"title":"Form1.vb <span style='color:#111;'> 15.12KB </span>","children":null,"spread":false},{"title":"bin","children":[{"title":"Release","children":null,"spread":false},{"title":"Debug","children":[{"title":"74766_676064_899447.jpg <span style='color:#111;'> 2.22MB </span>","children":null,"spread":false},{"title":"F2Torrent.vshost.application <span style='color:#111;'> 1.85KB </span>","children":null,"spread":false},{"title":"F2Torrent.pdb <span style='color:#111;'> 57.50KB </span>","children":null,"spread":false},{"title":"app.publish","children":[{"title":"setup.exe <span style='color:#111;'> 370.00KB </span>","children":null,"spread":false},{"title":"Application 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