{"id":1311,"date":"2022-04-01T23:42:54","date_gmt":"2022-04-01T15:42:54","guid":{"rendered":"https:\/\/104.es\/?p=1311"},"modified":"2022-04-01T23:42:54","modified_gmt":"2022-04-01T15:42:54","slug":"cyberpi-qrcode-menu","status":"publish","type":"post","link":"https:\/\/104.es\/index.php\/2022\/04\/01\/cyberpi-qrcode-menu\/","title":{"rendered":"CyberPi QRCode\u7522\u751f\u5668"},"content":{"rendered":"\n<p>CyberPi\u65e2\u7136\u6709\u4e00\u500b\u5c0f\u5de7\u7684\u87a2\u5e55\uff0c\u8981\u8b93\u9019\u500b\u87a2\u5e55\u7522\u751f\u53ef\u4ee5\u4f7f\u7528\u7684QR Code\u7576\u7136\u4e5f\u4e0d\u6703\u6709\u4efb\u4f55\u7684\u554f\u984c\u3002\u548c\u524d\u4e00\u7bc7\u6587\u7ae0\u985e\u4f3c\u7684\uff0c\u8981\u8b93CyberPi\u7522\u751fQR Code\uff0c\u4e5f\u662f\u9700\u8981\u900f\u904eSprite\u88e1\u9762\u7684\u529f\u80fd\u3002\u5148\u4f86\u770b\u4e00\u4e0b\u7a0b\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import cyberpi as cp\nimport event\n\nindex = 1\nqr = cp.sprite()\n\n@event.start\ndef on_start():\n    cp.display.show_label(\"Welcome\", \"center\", \"center\")\n    \n@event.is_press(\"left\")\ndef on_left():\n    global index, qr\n    index = index - 1\n    if index &lt; 1: index = 1\n    qr.delete()\n    cp.screen.render()\n    qr = cp.sprite()\n    qr.draw_qrcode(\"http:\/\/images.min-huang.com\/{}.jpg\".format(index))\n    qr.set_scale(350,350)\n    qr.show()\n    cp.screen.render()\n\n@event.is_press(\"right\")\ndef on_right():\n    global index, qr\n    index = index + 1\n    if index &gt; 5: index = 5\n    qr.delete()\n    cp.screen.render()\n    qr = cp.sprite()\n    qr.draw_qrcode(\"http:\/\/images.min-huang.com\/{}.jpg\".format(index))\n    qr.set_scale(350,350)\n    qr.show()\n    cp.screen.render()<\/code><\/pre>\n\n\n\n<p>\u518d\u4f86\u770b\u4e00\u4e0b\u5b83\u7684\u64cd\u4f5c\u904e\u7a0b\u5f71\u7247\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"CyberPi QR Code\u7522\u751f\u5668\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/3YuRvKIg7Gc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>\u5728\u9019\u500b\u7a0b\u5f0f\u4e2d\u6211\u5011\u4f7f\u7528\u4e86\u4e8b\u4ef6\u9a45\u52d5\u7684\u7a0b\u5f0f\u8a2d\u8a08\u65b9\u5f0f\uff0c\u6240\u4ee5\u4e00\u958b\u59cb\u9664\u4e86cyberpi\u4e4b\u5916\uff0c\u4e5f\u8981\u532f\u5165event\u3002\u5728\u5168\u57df\u8b8a\u6578\u7684\u65b9\u9762\uff0c\u6211\u5011\u5229\u7528index\u4f5c\u70ba\u8981\u986f\u793a\u7684QR Code\u7de8\u865f\u7684\u7d22\u5f15\uff0c\u4e26\u4f7f\u7528qr\u4f5c\u70ba\u8981\u986f\u793aQR Code\u7684Sprite\u3002<\/p>\n\n\n\n<p>\u958b\u59cb\u4e8b\u4ef6@event.start\u6bd4\u8f03\u7c21\u55ae\uff0c\u5b83\u7684\u76ee\u6a19\u662f\u5728\u756b\u9762\u4e2d\u4ee5show_lable\u986f\u793a\u4e00\u500b\u5b57\u4e32\u8868\u793a\u6b61\u8fce\u4f7f\u7528\u8005\u57f7\u884c\u9019\u500b\u7a0b\u5f0f\u3002\u63a5\u8457\u6211\u5011\u8981\u7b49\u5f852\u500b\u4e8b\u4ef6\uff0c\u5206\u5225\u662f\u628a\u6416\u687f\u5f80\u5de6\u63a8\u7684@event.is_press(&#8220;left&#8221;) \u4ee5\u53ca\u628a\u6416\u687f\u5f80\u53f3\u63a8\u7684@event.is_press(&#8220;right&#8221;)\uff0c\u5169\u8005\u4e4b\u9593\u7684\u5dee\u5225\u5c31\u53ea\u6709\u5c0d\u65bcindex\u9019\u500b\u8b8a\u6578\u7684\u8655\u7406\u3002\u5f80\u5de6\u63a8\u6642\u628aindex\u6e1b1\uff0c\u4f46\u662findex\u7684\u503c\u4e0d\u5f97\u5c0f\u65bc1\uff0c\u800c\u5f80\u53f3\u63a8\u5247\u662f\u628aindex\u52a01\uff0c\u4f46\u662f\u4e0d\u80fd\u5927\u65bc\u76ee\u524d\u6211\u5011\u7684QRCode\u8981\u9023\u7d50\u7684\u5716\u7247\u6578\u91cf\u3002<\/p>\n\n\n\n<p>\u6211\u5011\u7684QRCode\u6240\u9023\u7d50\u7684\u662f5\u5f35\u5716\u7247\uff0c\u5b83\u5206\u7684\u6a94\u6848\u540d\u7a31\u5206\u5225\u662f1.jpg\u30012.jpg\u3001\u4e00\u76f4\u52305.jpg\uff0c\u9019\u4e94\u5f35\u5716\u5f62\u6a94\u662f\u653e\u5728http:\/\/images.min-huang.com\u7684\u6839\u76ee\u9304\u4e0b\uff0c\u5b83\u5011\u6703\u4f7f\u7528\u5b8c\u6574\u7684\u7db2\u8defURL\u7db2\u5740\u7522\u751f\u6210QR Code\uff0c\u5982\u6b64\u7576\u4f7f\u7528\u8005\u900f\u904e\u624b\u6a5f\u6383\u63cfQR Code\u6642\uff0c\u5c31\u53ef\u4ee5\u5728\u624b\u6a5f\u4e0a\u770b\u5230\u6240\u5c6c\u7684\u5716\u7247\u5167\u5bb9\u3002\u7db2\u5740\u770b\u8d77\u4f86\u50cf\u662f\u9019\u6a23\uff1ahttp:\/\/images.min-huang.com\/1.jpg\u3002<\/p>\n\n\n\n<p>\u90a3\u9ebc\uff0c\u7576\u6211\u5011\u77e5\u9053\u4e86\u8981\u7522\u751f\u7684\u7db2\u5740\uff0c\u90a3\u8a72\u5982\u4f55\u5728CyberPi\u4e0a\u7522\u751f\u9019\u500bQR Code\u5462\uff1f\u9996\u5148\u522a\u9664\u524d\u4e00\u500bSprite\uff0c\u5237\u65b0\u87a2\u5e55\u7136\u5f8c\u5efa\u7acb\u4e00\u500bSprite\uff0c\u63a5\u8457\u5229\u7528draw_qrcode(&#8220;url&#8221;)\u7522\u751fQR Code\uff0c\u7136\u5f8c\u5229\u7528set_scale()\u653e\u5728\u5716\u5f62\uff0c\u5728\u4f7f\u7528show()\u628a\u5716\u5f62\u756b\u5230\u8a18\u61b6\u9ad4\u4e2d\u5f8c\uff0c\u518d\u4ee5screen.render()\u66f4\u65b0\u87a2\u5e55\u7684\u986f\u793a\u5373\u53ef\u3002\u4e3b\u8981\u7684\u7a0b\u5f0f\u78bc\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    qr.delete()\n    cp.screen.render()\n    qr = cp.sprite()\n    qr.draw_qrcode(\"\u60f3\u8981\u8b93QR Code\u9023\u7d50\u7684\u7db2\u5740\")\n    qr.set_scale(350,350)\n    qr.show()\n    cp.screen.render()<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>CyberPi\u65e2\u7136\u6709\u4e00\u500b\u5c0f\u5de7\u7684\u87a2\u5e55\uff0c\u8981\u8b93\u9019\u500b\u87a2\u5e55\u7522\u751f\u53ef\u4ee5\u4f7f\u7528\u7684QR Code\u7576\u7136\u4e5f\u4e0d\u6703\u6709\u4efb\u4f55\u7684\u554f\u984c\u3002\u548c\u524d\u4e00\u7bc7\u6587\u7ae0\u985e\u4f3c\u7684\uff0c\u8981\u8b93CyberPi\u7522\u751fQR Code\uff0c\u4e5f\u662f\u9700\u8981\u900f\u904eSprite\u88e1\u9762\u7684\u529f\u80fd\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1311","post","type-post","status-publish","format-standard","hentry","category-cyber-pi"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/1311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/comments?post=1311"}],"version-history":[{"count":0,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/1311\/revisions"}],"wp:attachment":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/media?parent=1311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/categories?post=1311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/tags?post=1311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}