{"id":31343,"date":"2024-11-25T12:29:26","date_gmt":"2024-11-25T04:29:26","guid":{"rendered":"https:\/\/fwq.ai\/blog\/31343\/"},"modified":"2024-11-25T12:29:26","modified_gmt":"2024-11-25T04:29:26","slug":"%e5%be%ae%e4%bf%a1%e5%b0%8f%e7%a8%8b%e5%ba%8fdrawimage%e7%90%86%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/31343\/","title":{"rendered":"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3"},"content":{"rendered":"<p>\u672c\u6587\u4e3b\u8981\u548c\u5927\u5bb6\u5206\u4eab\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3\uff0c\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6<\/p>\n<p><span style=\"font-size:18px;color:#333333\">\u4e00.drawimage\u53c2\u6570<\/span><\/p>\n<p><span style=\"font-size:18px;color:#333333\"><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/054\/025\/4d651d2b75efe75069f8df29910cba9b-0.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3\u63d2\u56fe\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3\u63d2\u56fe\" \/><br \/><\/span><\/p>\n<p><span style=\"font-size:18px;color:#333333\">\u4e8c.\u4f7f\u7528\u6848\u4f8b<\/span><\/p>\n<p><span style=\"font-size:18px;color:#333333\">1.\u4e0a\u4f20\u56fe\u7247\u65f6\uff1a&nbsp;chooseImage\u662f\u8c03\u7528\u76f8\u673a\u548c\u624b\u673a\u76f8\u518c\u7684\u63a5\u53e3<\/span><\/p>\n<p><span style=\"font-size:18px;color:#333333\"><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/054\/025\/4d651d2b75efe75069f8df29910cba9b-1.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3\u63d2\u56fe1\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3\u63d2\u56fe1\" \/><br \/><\/span><\/p>\n<p><span style=\"font-size:18px;color:#333333\">2.\u7ed8\u5236\u6307\u5b9a\u7684\u56fe\u7247(\u56fe\u7247\u76f4\u63a5\u5728\u5c0f\u7a0b\u5e8f\u7684images\u6587\u4ef6\u5939\u4e2d\uff09<\/span><\/p>\n<pre>\t\tconst&nbsp;ctx&nbsp;=&nbsp;wx.createCanvasContext('myCanvas');\r\n\t\tctx.drawImage('..\/uploads\/foods.jpg',&nbsp;0,&nbsp;0,&nbsp;150,&nbsp;100);\r\n\t\tctx.draw();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><span style=\"font-size:18px;color:#333333\">\u76f8\u5173\u63a8\u8350\uff1a<\/span><\/p>\n<p><span style=\"font-size:18px;color:#333333\"><\/span><\/p>\n<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4e3b\u8981\u548c\u5927\u5bb6\u5206\u4eab\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3\uff0c\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6 \u4e00.drawimage\u53c2\u6570 \u4e8c.\u4f7f\u7528\u6848\u4f8b 1.\u4e0a\u4f20\u56fe\u7247\u65f6\uff1a&nbsp;chooseImage\u662f\u8c03\u7528\u76f8\u673a\u548c\u624b\u673a\u76f8\u518c\u7684\u63a5\u53e3 2.\u7ed8\u5236\u6307\u5b9a\u7684\u56fe\u7247(\u56fe\u7247\u76f4\u63a5\u5728\u5c0f\u7a0b\u5e8f\u7684images\u6587\u4ef6\u5939\u4e2d\uff09 const&nbsp;ctx&nbsp;=&nbsp;wx.createCanvasContext(&#8216;myCanvas&#8217;); ctx.drawImage(&#8216;..\/uploads\/foods.jpg&#8217;,&nbsp;0,&nbsp;0,&nbsp;150,&nbsp;100); ctx.draw(); \u767b\u5f55\u540e\u590d\u5236 \u76f8\u5173\u63a8\u8350\uff1a \u4ee5\u4e0a\u5c31\u662f\u5fae\u4fe1\u5c0f\u7a0b\u5e8fdrawImage\u7406\u89e3\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-31343","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/31343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=31343"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/31343\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=31343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=31343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=31343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}