{"id":185226,"date":"2022-09-13T20:31:14","date_gmt":"2022-09-13T12:31:14","guid":{"rendered":"http:\/\/www.idc.net\/help\/185226\/"},"modified":"2022-09-13T20:31:14","modified_gmt":"2022-09-13T12:31:14","slug":"%e5%90%8e%e6%b5%aa%e4%ba%91%e5%b0%8f%e7%a8%8b%e5%ba%8f%e6%95%99%e7%a8%8b%ef%bc%9a%e5%be%ae%e4%bf%a1%e5%b0%8f%e7%a8%8b%e5%ba%8fapi-%e7%bb%98%e5%9b%becreatelineargradient%ef%bc%88%e5%88%9b%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/185226\/","title":{"rendered":"\u540e\u6d6a\u4e91\u5c0f\u7a0b\u5e8f\u6559\u7a0b\uff1a\u5fae\u4fe1\u5c0f\u7a0b\u5e8fAPI \u7ed8\u56fecreateLinearGradient\uff08\u521b\u5efa\u7ebf\u6027\u6e10\u53d8\uff09"},"content":{"rendered":"<p>\u7ed8\u56fe\u63a5\u53e3\u548c\u65b9\u6cd5<\/p>\n<p> <\/p>\n<h2>canvasContext.createLinearGradient<\/h2>\n<hr>\n<h3>\u5b9a\u4e49<\/h3>\n<p>\u521b\u5efa\u4e00\u4e2a\u7ebf\u6027\u7684\u6e10\u53d8\u989c\u8272\u3002<\/p>\n<p><strong>Tip<\/strong>: \u9700\u8981\u4f7f\u7528<code>addColorStop()<\/code>\u6765\u6307\u5b9a\u6e10\u53d8\u70b9\uff0c\u81f3\u5c11\u8981\u4e24\u4e2a\u3002<\/p>\n<h3>\u53c2\u6570<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u53c2\u6570<\/th>\n<th>\u7c7b\u578b<\/th>\n<th>\u5b9a\u4e49<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>x0<\/td>\n<td>Number<\/td>\n<td>\u8d77\u70b9\u7684x\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>y0<\/td>\n<td>Number<\/td>\n<td>\u8d77\u70b9\u7684y\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>x1<\/td>\n<td>Number<\/td>\n<td>\u7ec8\u70b9\u7684x\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>y1<\/td>\n<td>Number<\/td>\n<td>\u7ec8\u70b9\u7684y\u5750\u6807<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4f8b\u5b50<\/h3>\n<pre><code>const ctx = wx.createCanvasContext('myCanvas')\n\n\/\/ Create linear gradient\nconst grd = ctx.createLinearGradient(0, 0, 200, 0)\ngrd.addColorStop(0, 'red')\ngrd.addColorStop(1, 'white')\n\n\/\/ Fill with gradient\nctx.setFillStyle(grd)\nctx.fillRect(10, 10, 150, 80)\nctx.draw()\n<\/code><\/pre>\n<p><\/p>\n<p>\u7ed8\u56fe\u63a5\u53e3\u548c\u65b9\u6cd5<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7ed8\u56fe\u63a5\u53e3\u548c\u65b9\u6cd5 canvasContext.createLinearGradient \u5b9a\u4e49 \u521b\u5efa\u4e00\u4e2a\u7ebf\u6027\u7684\u6e10\u53d8 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":185227,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[182398],"tags":[],"class_list":["post-185226","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mini-program"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/185226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=185226"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/185226\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media\/185227"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=185226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=185226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=185226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}