為您找到相關(guān)結(jié)果25,326個(gè)
基于Html5 canvas實(shí)現(xiàn)裁剪圖片和馬賽克功能及又拍云上傳圖片 功能_html...
<divclass="canvas-minBox right"@mousedown.stop="startResize($event,3)"></div> <divclass="canvas-minBox right-down"@mousedown.stop="startResize($event,4)"></div> <divclass="canvas-minBox down"@mousedown.stop="startResize($event,5)"></div> <divclass="canvas-minBox left-down"@mousedown...
www.dbjr.com.cn/html5/6819...html 2025-6-12
canvas實(shí)現(xiàn)十二星座星空?qǐng)D_javascript技巧_腳本之家
ctx.clearRect(0,0,canvas.width,canvas.height); ctx.strokeText(getStarSign(date), 50, 50); constellation(ctx,star[getStarSign(date)],canvas.width,canvas.height); },500); } }; </script> </body> </html>以上就是本文的全部?jī)?nèi)容,希望本文的內(nèi)容對(duì)大家的學(xué)習(xí)或者工作能帶來(lái)一定的幫助,同時(shí)也希望...
www.dbjr.com.cn/article/1054...htm 2025-6-5
小程序點(diǎn)擊圖片實(shí)現(xiàn)png轉(zhuǎn)jpg_javascript技巧_腳本之家
<viewhidden="{{!isSignCanvasShow}}"> <canvascanvas-id="picCanvas"id='picCanvas'class="pic-canvas"></canvas> </view> 方法解釋: 通過(guò)wx.previewImage預(yù)覽圖片時(shí),會(huì)出現(xiàn)格式為png預(yù)覽背景為黑色時(shí),圖片查看不清楚,能過(guò)下面的方法轉(zhuǎn)化為白色底,方便查看 ...
www.dbjr.com.cn/article/1724...htm 2025-6-1
小程序?qū)崿F(xiàn)手寫(xiě)板簽名_javascript技巧_腳本之家
<view class="qianming_top flex-def flex-cCenter" wx:if="{{is_sign==1}}"> <view class="flex-one">簽名</view> <view class="clear" bindtap="clear">清空</view> </view> <view class="canvas"> <canvas style="width: 100%;height: 360rpx;border: 1px #eee solid;background-color: ...
www.dbjr.com.cn/article/2546...htm 2025-6-8
Python中的tkinter庫(kù)簡(jiǎn)單案例詳解_python_腳本之家
canvas.move(rect, 0, 2) # 移動(dòng)正方形,使其往下走兩個(gè)單位 a = tk.Button(window, text="move", command=moveit).pack() window.mainloop() # 顯示窗口案例八Menubar 菜單1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 import tkinter as tk window = tk.Tk()...
www.dbjr.com.cn/article/2353...htm 2025-5-28
Vue實(shí)現(xiàn)電子簽名功能的完整代碼_vue.js_腳本之家
1 2 3 npm i signature_pad@4.2.0 npm i html2canvas signature_pad 簽名板 signature_pad - npm html2canvas html轉(zhuǎn)cavas html2canvas - npm 三、添加簽名面板 1 2 3 4 5 6 7 8 9 <div class="sign-box" style="width:300px;height:200px;padding: 10px; margin:10px;background-color: rgb...
www.dbjr.com.cn/javascript/335658h...htm 2025-6-11
微信小程序?qū)崿F(xiàn)手指觸摸畫(huà)板_javascript技巧_腳本之家
context.clearRect(0, 0, canvasw, canvash); context.draw(true); }, //提交簽名內(nèi)容 setSign: function () { var that = this; if (arrx.length == 0) { wx.showModal({ title: '提示', content: '簽名內(nèi)容不能為空!', showCancel: false }); return false; }; console.log("不是空的,...
www.dbjr.com.cn/article/1434...htm 2025-5-25
python tkinter模塊的簡(jiǎn)單使用_python_腳本之家
1)canvas 創(chuàng)建畫(huà)布的主要目的是將從word中保存的藝術(shù)字添加到主界面當(dāng)中。 1 2 3 4 canvas = tk.Canvas(window, height=200, width=1000)#創(chuàng)建畫(huà)布 image_file = tk.PhotoImage(file='1.gif')#加載圖片文件 image = canvas.create_image(500,100, anchor='center', image=image_file)#將圖片置于畫(huà)布上...
www.dbjr.com.cn/article/2090...htm 2025-6-11