如果问题是JSP在页面上呈现item.logo的方式将它搞砸了，我也不会感到惊讶。由于在JavaScript中不使用字节...
<style> .drag{ width: 400px;height: 100px;border: 1px dotted #333;text-align: center;line-height: 100px; color: #aaa; display: inline-block;} .drag_hover{background: #FAD6F9;} </style> <span class=‘drag‘ id="drag">拖拽区域</span> 然后,我们给drag区域绑定上拖拽事件 var drag ...
使用URL.createObjectURL方法,從StorageFile建立Blob。 JavaScript functionprocessResults(file){// Check that the picker returned a file.// The picker returns null if the user clicked Cancel.if(file) {varimageBlob = URL.createObjectURL(file); }else{ displayError("An image wasn't selected."); } ...
在我们日常开发中一定会遇到"所见即所得"的需求,如导出查询表格中的内容为 Excel 表格——《前端导出 Excel,让后端刮目相看》(https://juejin.cn/post/7030291455243452429)、通过后台网页配置实现配置预览页与实际页面展示的统一——《从零开发一款可视化大屏制作平台》(https://juejin.cn/post/6937257727106220040)。
.drag{ width: 400px;height: 100px;border: 1px dotted #333; text-align: center; line-height: 100px; color: #aaa; display: inline-block;} .drag_hover{background: #FAD6F9;} </style> <span class='drag' id="drag">拖拽区域</span> ...
imgUrl = canvas.toDataURL("image/png"); let image = new Image(); // 解决跨域 Canvas 污染问题 image.setAttribute("crossOrigin", "anonymous"); image.onload = function() { let canvas = document.createElement("canvas"); canvas.width = image.width; ...
downFileToLocal(fileName, blob) { // 创建用于下载文件的 a 标签 const d = document.createElement("a"); // 设置下载内容 d.href = URL.createObjectURL(blob); // 设置下载文件的名字 d.download = fileName; // 界面上隐藏该按钮 d.style.display = "none"; ...
{list-style:none;width:150px;height:200px;background-color:red;display:inline-block;transition:transform 1s;position:relative;/*使用相对定位,是想把图片能够置顶*/box-shadow:0 0 10px;/*使图片有阴影*/}ul li:nth-child(1){transform:rotate(30deg);}ul li:nth-child(2){transform:rotate(-...
$('#inner').css('display','block');//显示上传提示 }, loadingClose:function() { $('#loading').css('display','none'); $('#inner').css('display','none'); }, upload:function() { uploadImg("/xxx/xxx");//传的参数是图片上传的接口, 用于ajax上传}, ...
You can use the img element to display an image file, such as a JPEG or Portable Network Graphics (PNG) file. You can also use Cascading Style Sheets (CSS) to create backgrounds and patterns from an image file. Use thumbnails to create graphical views of the file system for the user ...